Ephesians 6:10

 

 

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Ephesians 6:10 Finally, be strong in the Lord and in the strength of His might. (NASB: Lockman)

Greek: Tou loipou endunamousthe (2PPPM) en kurio kai en to kratei tes ischuos autou.
Amplified: In conclusion, be strong in the Lord [be empowered through your union with Him]; draw your strength from Him [that strength which His boundless might provides].  (Amplified Bible - Lockman)
NLT:  A final word: Be strong with the Lord's mighty power. (NLT - Tyndale House)
Phillips: In conclusion be strong - not in yourselves but in the Lord, in the power of his boundless resource.  (
Phillips: Touchstone)
Wuest: Finally, be constantly strengthened in the Lord and in the active efficacy of the might that is inherent in Him. (
Erdmans
Young's Literal: As to the rest, my brethren, be strong in the Lord, and in the power of his might

REFERENCES

Albert Barnes
Wayne Barber
Wayne Barber
J M Boice
John Calvin
Thomas Constable
Bob Deffinbaugh
Explore the Bible
David Guzik
S Lewis Johnson
M Lloyd-Jones
John Piper
A T Robertson
Ray Stedman
Ray Stedman
Ray Stedman
Ray Stedman
Ray Stedman
Ray Stedman
Ray Stedman
Marvin Vincent
Precept Ministries

Ephesians 6
Ephesians 6:10: Spiritual Warfare -1
Ephesians 6:11: Spiritual Warfare -2

Ephesians 6 Spiritual Warfare (Audio)

Ephesians 6
Ephesians Expository Notes

Ephesians 6:10-13 spiritual Warfare

Ephesians 6:10-24: Use God’s Full Armor
Ephesians 6

Ephesians 6:10-24 The Christian's Conflict Audio or Pdf
Ephesians 6:10-11: The Call to Battle

Ephesians 6:10-20 Ready to Move w Gospel of Peace

Ephesians 6 
Ephesians 6:10: Forces We Face

Ephesians 6:10-13: Beginning The Battle

Ephesians 6:10-13: Strategy Of Satan

Ephesians 6:10-13: Tactics Of Terror

Ephesians 6:14-17: Defense Against Defeat-Pt1

Ephesians 6:10-18: Defense Against Defeat-Pt2

Ephesians 6:10-20: The Infallible Posture

Ephesians 6
Ephesians Lesson 1 - 37 pages PDF

FINALLY, BE STRONG IN THE LORD: Tou loipou endunamousthe (2PPPM) en kurio kai en to kratei tes ischuos autou: (2 Corinthians 13:11; Philippians 3:1; 4:8; 1 Peter 3:8)   (1:19; 3:16; Deuteronomy 20:3,4; 31:23; Joshua 1:6,7,9; 1 Samuel 23:16; 1 Chronicles 28:10,20; 2 Chronicles 15:7; Psalms 138:3; Isaiah 35:3,4; 40:28,31; Haggai 2:4; Zechariah 8:9,13; 1 Corinthians 16:13; 2 Corinthians 12:9,10; Philippians 4:13; Colossians 1:11; 2 Timothy 2:1; 4:17; 1 Peter 5:10

RELATED RESOURCES

 RESISTING THE ROARING LION
 

Exposition of 1Peter 5:8
Exposition of  1Peter 5:9

EPHESIANS 6:10-18 BY WAYNE BARBER

Ephesians 6:10:      SPIRITUAL WARFARE, PT 1
Ephesians 6:11:      SPIRITUAL WARFARE, PT 2
Ephesians 6:14:      SPIRITUAL WARFARE, PT 3
Ephesians 6:15-16  SPIRITUAL WARFARE, PT 4
Ephesians 6:17:      SPIRITUAL WARFARE, PT 5
Ephesians 6:12-13  SPIRITUAL WARFARE, PT 6

Ephesians 6:18:      SPIRITUAL WARFARE, PT 7

THE METAPHOR OF THE CHRISTIAN SOLDIER

Soldier Illustrations

Exposition of 2 Timothy 2:3-4
Three Kinds of Soldiers - Ten Principles of Warfare

Roman Soldier by Edward Gibbon (Decline & Fall of Roman Empire)
The Roman Soldier - Description from Jewish Historian Josephus
A Few Soldier Stories and Sermons

THE AMALEKITES: A PICTURE OF PERSISTENT SPIRITUAL WARFARE
 

Jehovah Nissi: Exposition of Exodus 17:8-16

Cyberhymnal Hymns on Topic of Spiritual Warfare (scroll down list)

2 Chronicles 20:1-25 Ambushing Satan with Song - John Piper

Finally (3062) (loipoy from leipo = to leave, to forsake, to lack, to fall short, to be wanting or be deficient) is an adjective that describes that which is remaining - the remnant, the residue, the rest. The specific phrase Paul uses here "to loipon" is used in classical Greek to mean "as for the rest" and with the temporal sense "henceforth". In the present context the idea is as far as the rest is concerned, beyond that, in addition. This teaching is vital to know and to obey that the believer might prevail in every encounter with the devil and his minions.

David Guzik (Ephesians 6) writes that...

William Gurnall, a pastor, published his book The Christian in Complete Armour, an exposition of Ephesians 6:10-20. He subtitled the work

The saint’s war against the Devil, wherein a discovery is made of that grand enemy of God and his people, in his policies, power, seat of his empire, wickedness, and chief design he hath against the saints; a magazine opened, form whence the Christian is furnished with spiritual arms for the battle, helped on with his armour, and taught the use of his weapon; together with the happy issue of the whole war.

In his dedication, he describes his book as a “mite” and a “little present” but it comprises three volumes, 261 chapters, and 1,472 pages - all on these eleven verses!

Finally: This comes at the end of the letter - a letter that Paul has carefully established our place in Jesus, and then the basics of the Christian walk. This is his last section dealing with that walk.

· In light of all that God has done for you.
· In light of the glorious standing you have as a child of God.
· In light of His great plan of the ages that God has made you part of.
· In light of the plan for Christian maturity and growth He gives to you.
· In light of the conduct God calls every believer to live.
· In light of the filling of the Spirit and our walk in the Spirit.
· In light of all this, there is a battle to fight in the Christian life. 

The KJV has "my brethren", but this phrase is not found in the more modern Greek texts that most scholars consider to be as more reliable. Nevertheless, the point is a good one -- Paul is not just calling on the pastors or elders of the church to be strong for the battle but for every believer. Spiritual warfare is the inevitable consequence of a life lived in Christ, filled with the Holy Spirit, and walking as a stranger and alien in a world is under the domination of the one whose very name is Evil. John explains that...

We know that we are of God, and the whole (complete in extent) world lies in the power of the evil one. (1John 5:19)

In this section Paul sets forth his analysis of life, especially as it relates to the Christian life. And in Paul's analysis, life is struggle, life is conflict, life is warfare. And so Paul blows the trumpet sounding a clarion call to arms to every Christian who whether they realize it or not has been called into "active duty" and is to respond courageously and armed with the truth. Remember the victory has already been won at Calvary. Our goal is to learn to live, walk and war in the light of that certain truth.

Ruth Paxson writes that...

God has no place for a spiritual pacifist. Every Christian is conscripted for both defensive and aggressive warfare. He calls every saint to arms. "Not into a religious playground or sports field, but into grim, terrible, bloody conflict are we called." (The Wealth, Walk and Warfare of the Christian).

John MacArthur reminds us that...

The idea of the Christian’s practice can be illustrated by a car. The first three chapters of Ephesians describe the car: its engine and its capabilities. The second three chapters are the road map the car is to follow. The first three chapters define believers as high-powered individuals; the second three chapters show them where to go with their power. The ignition switch is represented by the strengthening of the Spirit in the inner man. As the Spirit fills and controls the believer, the power plant is turned on. He then can begin to move out in obedience to follow the road map that God has given. (MacArthur, J.. The Believer's Armor. Chicago: Moody Press 1986)

Spurgeon comments on "finally"...

as if this were a matter of the highest importance, to be considered first and last. — ”Finally, my brethren, be strong in the Lord and in the power of his might.” You know how strong Paul himself was; he was a veritable giant for Christ, and he here calls upon his brethren to be as he was, he did not want to be brother to dwarfs, so he appealed to his brethren to “be strong in the Lord, and in the power of his might.

Ray Stedman introduces this section writing...

God has issued to each of us a bugle call to intelligent combat. It is a call to us to be men and women of God, to fight the good fight, to stand fast in the faith, to be strong in the Lord in the midst of the battle, in the midst of this dark and evil world.

Those who ignore this call and the battle that rages around them are doomed to be casualties. We cannot remain neutral. We must choose sides. We must align ourselves with the forces of God, the forces of good. We must answer the bugle call, we must put on our armor and stand our ground or the battle will roll over us and in our defenseless, bewildered state, the forces of evil will trample us into the dust of the battlefield.

So we must learn to recognize how the dark systems of the devil work. But more than that, we must learn the processes of overcoming the systems of the devil not by flesh and blood, not by joining committees, not by political action, not by taking up clubs or assault weapons and attacking a human enemy. No, Paul says the weapons of our warfare are not flesh and blood weapons, not physical weapons, not political weapons. Rather, our weapons are mighty, through God, unto the pulling down of strongholds and bringing into captivity every thought to the obedience of Christ (2 Corinthians 10:3-5). That is the path to victory!

Gracious Father, thank You for a truth that startles me, prods me, and disturbs me. Thank You, Lord, for Your word of reality that speaks to me in the midst of my complacency and illusion. How easily I would drift on in futile ignorance, never raising a finger against the deterioration of life and the destruction of body and soul, were it not for this word of challenge that calls me back and makes me see life as it really is. Lord, teach me to bow in humility before Your Word and to say to the Holy Spirit, "O great Teacher of God, open these Scriptures and make them real to me today." In Christ's name. Amen. (Stedman, Ray. Spiritual Warfare - entire book online -- highly recommended. Here is a quote from a review by Cyril Barber who writes that Stedman's work represents "A clear, definitive exposition of Ephesians 6:10–20, laying out precisely and accurately the resources God in Christ has made available to His own. These studies are free of all sectarianism (such as books on holiness frequently exhibit), and readers may safely and confidently rely on this pastor/author’s wise exposition. A must for every earnest Christian.")

Wayne Barber explains that...

The word "Finally" means that he is drawing everything to a close. In other words, everything that has been said he is now summing up as he closes the book of Ephesians...

Look back with me 3:16. There is no way to go to Ephesians 6:10 without first of all finding the context and the flow of everything that has been said. That word "Finally" is wrapping it all up. What is the "all" that we are talking about. What has been said in Ephesians? Well, his prayer in 3:16 tells us everything:

"that He would grant you, according to the riches of His glory, to be strengthened with power through His Spirit in the inner man."

The word "power"  (dunamis) (note) means ability, ability to do what you could not do before Jesus came into your life.

The Holy Spirit now is in our lives. He lives in the inner man in order to strengthen us, to cause us to be able to do what we could not do without Him. The degree of the strengthening, he says, is

"according to the riches of His glory".

Ephesians 1, 2 and 3 sum that up.

Ephesians 1 (click for messages) talks about the RICHES of His glory. Verse 3 sums it all up: We have been given

"every spiritual blessing in the heavenly places in Christ"

Then Ephesians 2 (click for messages) shows us the REASONS of our salvation. We

"were dead in your trespasses and sins".

We couldn’t save ourselves. It was God who came to save us, to pay a debt on the cross that He did not owe.

In Ephesians 3 there is the REVELATION of our salvation (click for messages). Now according to all that we have in Jesus Christ, He has made us saints; He has chosen us; He has sealed us. All the things that He has done, according to all of that, we are to be strengthened in the inner man with power by the Spirit of God.

The greatest weapon we have in the spiritual war that we are cast into the moment we are saved is not what we say to the devil. It is how we live the Christ-life before him. My obedience, my surrender, my submission is my greatest weapon in defeating the one who is the prince of darkness that lives around me.

We have seen this strengthening in the inner man, this brand new garment, all of this. Now Paul says:

"Finally, be strong in the Lord and in the strength of His might"

We live in a world that is hostile. I do not need to worry about what I have to say to the devil. But when I bow and I say "yes" to Jesus and commit to doing what His Word has to say, at that very moment, I become a fortress against him. That is my weapon in the warfare I am forced into when I become a Christian. My weapon is my submission to the Lord Jesus Christ...

We must daily understand the flow of Ephesians: Be filled with the Spirit, be strengthened in the inner man by the Spirit of God. That is our classic weapon against the evil one.

John Eadie writes that finally has the sense of...

henceforward.”...It is as if he said, What remains for me to tell you but this?...The apostle now represents the church as engaged in an active warfare with the powers and principles of evil. Olshausen suggests that his residence in the Praetorian at Rome, where the equipment and discipline of soldiers were a daily spectacle, may have originated the allegory. Similar allusions are found in Isa 11:5, 59:17; Ps. 18,144; 2 Cor. 10:4; 1 Thess. 5:8. The primary charge to the spiritual militia is (be strong)  (John Eadie, D., LL.D. The Epistle of St Paul to the Ephesians)

Wiersbe writes...

It comes as a shock to the new believer that the Christian life is a battleground and not a playground. In my pastoral ministry, I could always tell when a new Christian was starting to mature, because he found himself fighting battles. This was a good sign because, as Spurgeon used to say, “Satan never kicks a dead horse!” (Wiersbe, W. W. The Strategy of Satan : How to Detect and Defeat Him)

In the Lord - In the sphere of the Lord is strength and in union with Him. It speaks of the active efficacy of the might that is inherent in Christ. It is the same as abiding in the Vine, as being filled with His Spirit, as living in the reality of Christ Who is our life. Believers can only walk as more than conquerors and can only fight as victorious ones in the glorious truths in Ephesians describing every spiritual blessing by doing so supernaturally, continually abiding, continually being strengthened by the Spirit with God's surpassing resurrection power. This emphasizes the importance of studying, preaching and teaching on Ephesians 6:10-18 in the context of who the believer is in Christ, truths that are revealed in the first 3 chapters. To study Ephesians 6:10-18 in the absence of the truths in the preceding chapters is apt to leave the student frustrated and even somewhat confused, for Paul is giving a number of warfare commands but they are based upon the foundation he has established in the preceding passages. Remember that the "practical section" begins with a call to walk worthy, to walk in love, to walk in the light, to walk in the Spirit, all intimately connected with our waging of spiritual warfare.

Self-sufficiency
in spiritual struggles
is spiritual suicide

MacDonald has a good word for all believers writing that...

Every true child of God soon learns that the Christian life is a warfare. The hosts of Satan are committed to hinder and obstruct the work of Christ and to knock the individual soldier out of combat. The more effective a believer is for the Lord, the more he will experience the savage attacks of the enemy: the devil does not waste his ammunition on nominal Christians. In our own strength we are no match for the devil. So the first preparatory command is that we should be continually strengthened in the Lord and in the boundless resources of His might. God’s best soldiers are those who are conscious of their own weakness and ineffectiveness, and who rely solely on Him. “God has chosen the weak things of the world to put to shame the things which are mighty” (1 Cor. 1:27b). Our weakness commends itself to the power of His might. (MacDonald, W & Farstad, A. Believer's Bible Commentary: Thomas Nelson)

C H Spurgeon has some interesting words regarding the reality and necessity of spiritual warfare writing that...

There are no fair-weather soldiers in God’s army. All must endure difficulty. Our courage must be tried and proven. God’s ships never go to sea without being tested, and only when their seaworthiness is proven do they go on longer voyages. Unless you have been through a great trial, you cannot help those who are in great difficulty.

If we were placed in a glass case, we would not grow. If we were never injured, there would be no forgiving grace. Without suffering, we would not have patience. We grow in grace only when the stormy winds of trials blow. It is through harsh experiences that believers grow “strong in the Lord and in the power of His might” (Eph 6:10). Christian, when Satan tests and tries you, hold the world loose but firmly grip the invisible things of God.

It is possible that God might use you to scatter His seed with a hand that was never wounded, but He will not use you to minister to the brokenhearted until trials have made you tender and sensitive. Your present, painful experience is a necessary preparation for something that will give you tenfold joy. If we are not tested, we cannot be victorious. The rule of the kingdom is: no battle, no crowns; no conflict, no conquest. (from Spurgeon, C., & Clarke, R. H. Beside Still Waters. Thomas Nelson Publishers)

There's victory for you over sin and its shame:
Look only to Jesus, there's power in His name.
The devil can't harm you nor cause you to sin;
By trusting the Savior the victory you'll win. --Anon.

Satan's ploys are no match for the Savior's power.

Ray Stedman has an interesting analogy that applies to believers who are ignorant or apathetic regarding their sure warfare and God's sufficient provisions...

I once heard of a mental hospital that had devised an unusual test to determine when patients were ready to go back into the world. They brought candidates for release into a room where a tap was turned on, sending water pouring out over the floor. Next they handed the patient a mop and told him to mop up the water. If the patient had a firm enough grasp of reality to turn off the tap before mopping up the water, he was ready to go out into society. But if he started mopping up the water without turning off the tap, they knew that more treatment was needed.

While you and I would never miss such an obvious step as shutting off the tap before mopping the floor, the fact is that many Christians live their lives in a way that is from a spiritual point of view equally absurd. Each of us as Christians have been given the mop of God's truth and we have been told to use it to help mop up the evil in the world around us. But we can only be useful in mopping up the evil around us if we first have enough sense to shut off the flow of evil that pours into our own hearts from the world rulers of this present darkness...

It is a battle in which we are all engaged every moment of our lives because "the world," the outer arena of battle, is always around us while "the flesh," the inner arena of battle, is always within us. We cannot escape "the world," nor can we run away from "the flesh." We must always begin our battle right at the point where we are.

John F. Kennedy, the 35th president of the United States, was a commissioned naval officer during World War II. In August 1943, the patrol torpedo boat he commanded, PT 109, was rammed and sunk by an enemy destroyer near the Japanese-held Solomon Islands. Kennedy and a fellow officer swam from one enemy-occupied island to the next until they found some friendly islanders who helped them get a message to U.S. forces. Years later, Kennedy was regarded as a war hero. His response: "It was involuntary. They sank my boat."

So it is with us. We don't have to volunteer to find ourselves in the middle of a war. It's involuntary. The war has already come to us. It is raging all around us, through the channel of "the world." And it is raging within us, through the channel of "the flesh."

You might be thinking, "That doesn't seem right at all! I thought that when you became a Christian, Jesus would set you free from the kingdom of Satan so that the devil could no longer touch you! I thought that conversion would take you out of the battle, not thrust you deeper into the conflict!" If that is your concept of the Christian life, you couldn't be more wrong! When you become a Christian, that's when the battle really begins! (Ray Stedman. Spiritual Warfare - Available online and highly recommended!)

Be strong (1743)(endunamoo from en = in + dunamóo  = strengthen in turn from dunamis = to be able or to have power -- click study of dunamis) is best explained if one first understands the root word dunamis which refers to inherent strength residing in a thing by virtue of its nature. The best spiritual example this inherent power is the "gospel" ("the gospel...is the power [dunamis] of God for salvation to everyone who believes" Ro 1:16) which has the inherent, omnipotent power of God that brings about the salvation of a lost sinner who receives this truth. Dunamis therefore describes power that overcomes resistance or effects a change. Dunamis is used in the NT to speak of miracles or supernatural acts which have in them the inherent power of God or in which one sees His supernatural power exerted in their performance.

Endunamoo then means "to put power in" (like a car needs gas for power) and so to make strong, vigorous, to strengthen (active voice), or to be strengthened (passive voice), be enabled or be empowered inwardly. This word is found only in biblical and ecclesiastical Greek. The idea is to cause one to be able to function or do something. It can refer to physical strengthening as in (Heb 11:34) but is more often used with the figurative sense referring to spiritual or moral strengthening as in the case of Abraham who

"with respect to the (humanly speaking impossible) promise of God (of the birth of Isaac in his old age by Sarah), he did not waver (was not divided, did not vacillate between two opinions - belief and unbelief - implies a  mental struggle) in unbelief, but grew strong (endunamoo - was endued with strength or empowered) in faith (Godly faith is not full understanding but full trust), giving glory to God (see note Romans 4:20) (Comment: Isaac was the result of a biological miracle performed by God in answer to Abraham’s faith.)

Paul like a commanding general who is overseeing his troops in the heat of battle, issues his first command to be strong, a present imperative which is to be carried out by the Christian soldier continually. To disobey a general's command in a crucial battle can be disastrous, and it is no less serious in the believer's continual warfare against his or her unseen foe.

Although clearly believers are to be continually strong, there is some difference of opinion as to how this occurs and this distinction hinges on how one interprets the voice of the verb, either passive or middle. In a sense it is not that significant which voice one favors, because all would agree that the source of the strength is the same, the indwelling Holy Spirit.

Thomas Constable emphasizes this point writing that...

“Be strong” is a passive or middle imperative in the Greek text. It probably meant both “allow the Lord to strengthen you” (passive) and “strengthen yourself in the Lord” (middle)  (Ephesians Expository Notes) (Bolding and italics added)

John MacArthur writes about the decisive choice...

The Christian life is a question of availability and appropriation. Know three things: First, it’s a war; second, the power to win is available; and third, you have to appropriate that power. You can choose to be impotent and fruitless, even though residing in you is the power to do beyond what you can even ask or think (Eph. 3:20). You could be lethargic, indifferent, and cold, drifting in and out of church, and still be in heaven for all eternity by the immeasurable grace of God. But if you choose to live that way, you will forfeit the blessing God has for you in this life. And you will fail to glorify God to the extent that you should. You can turn your back on all the available power, blunt the energy of the Spirit of God, and say no to the incomprehensible work that God wants to do through you if you so choose. (MacArthur, J.. The Believer's Armor. Chicago: Moody Press 1986)

On the occasion of the Amalekites raiding and burning Ziklag and taking the woman captive we read an OT parallel of being strong in the Lord in order to fight the good fight...

Moreover David was greatly distressed because the people spoke of stoning him, for all the people were embittered, each one because of his sons and his daughters. But David strengthened [aorist passive in the LXX] himself in the LORD his God. (1Samuel 30:6) (Comment: The verb for strengthened in 1Samuel 30:6 is krataioo - to become strong, but the principle is the same as the NT believer's need to be continually strong to fend off the "Amalekites" that seek to raid the camp of our heart and mind and soul and spirit! Related resource on fighting the Amalekites - Jehovah Nissi The LORD Our Banner and  Jehovah Nissi: Exposition of Exodus 17:8-16)

The idea of the passive voice brings to mind the picture of believers who as vessels (of honor - 2 Ti 2:21) make themselves available to and are strengthened by this outside force. In Ephesians we have learned that this Source is the Holy Spirit Who strengthens us in our inner man as we learn to yield our will to His, and allow Him to strengthen us. Are you resisting or hindering the Spirit (e.g., not necessarily overt willful sin which clearly "hinder" His working in unclean vessels but even in subtle ways like self-confidence, self-assurance, etc, all of which are simply manifestations of pride - to which God is opposed and which cuts off the flow of grace! - see 1 Peter 5:5)? You cannot empower yourself for this spiritual struggle. You must be willing to surrender to the Spirit and allow yourself to be strengthened. Be continuously empowered in union with the Spirit of Christ. He is the source of spiritual power. Spiritual battles are not natural and require supernatural spiritual strength. This dynamic process is synonymous with being continually filled with or controlled by the Spirit (note Eph 5:18) and continually walking in the Spirit (note Gal 5:16ff) so that we will not fulfill the desires of the flesh. The result is supernatural strength for a supernatural life. As Paul testified in Galatians

"is no longer I who live, but (Who) Christ lives in me and the life which I now live in the flesh I live by faith in the Son of God, Who loved me, and delivered Himself up for me." (see note Galatians 2:20)

As someone has said, you plus God equals a majority. No giant can withstand you when you are led and empowered by God’s Spirit.

The fact that we cast everything upon God does not give the soldier the right to sit back and to do nothing. Cromwell’s advice to his troops was...

“Trust in God, and keep your powder dry.”

In Philippians Paul explained how he had come to learn about his source of strength explaining...

Not that I speak from want; for I have learned to be content in whatever circumstances I am. 12 I know how to get along with humble means, and I also know how to live in prosperity; in any and every circumstance I have learned the secret of being filled and going hungry, both of having abundance and suffering need.13 I can do all things through Him Who (continually = present tense) strengthens (endunamoo) me. (See notes Philippians 4:11; 4:12; 4:13)

David Guzik emphasizes that...

The detailed teaching of spiritual warfare in this passage presents two essential components. First, you must be strong in the Lord and in the power of His might. Then, you must put on the whole armor of God. The two are essential, and much teaching on Christian combat neglects the first. If you take a weak man who can barely stand, and put the best armor on him he will still be an ineffective soldier. He will be easily beaten. So equipping for Christian combat must begin with be strong in the Lord and in the power of His might.

Before a soldier is given a gun or shown how to fire a missile, he goes through basic training. One great purpose for basic training is the build up the recruit’s physical strength. It is as if the army says, “Soldier, we are going to give you the best weapons and armor possible. But first we have to make sure that you are strong, and that you can use what we give you.” (Ephesians 6) (Comment: And what is "Basic Training" in Christianity? Is it not making disciples, equipping them and growing them up in Christ likeness - see notes Ephesians 4:11; 4:12; 4:13; 4:14; 4:15)

John Eadie writes that...

This command (Ed: to continually allow yourself to be strengthened) is one of primary necessity. No matter what armour is provided, how finely tempered, how highly polished, or how closely fitted it may be, if there be no strength in the heart—if the man have merely the dress of a soldier, with the spirit of a poltroon. And the valour is spiritual, as is the armour; for physical courage and intellectual prowess are often, alas! allied to spiritual cowardice. Moreover, soldiers have an invincible courage when they have confidence in the skill and bravery of their leader; and the power of His might, in which they are strong, has proved its vigour in routing the same foes which they are summoned to encounter. As the Captain of salvation, “He spoiled principalities and powers, and triumphed over them.” The order to the spiritual host is now given, as if with the stirring peal of a trumpet "Put on the panoply of God" (John Eadie, D., LL.D. The Epistle of St Paul to the Ephesians)

In Second Timothy, Paul like a military general who is turning over the command to his younger officer, he instructs Timothy...

You therefore, my son, be strong (present imperative) in the grace that is in Christ Jesus. (See note 2 Timothy 2:1)

So just as he commanded Timothy, Paul is commanding the Ephesians believers to let the Lord constantly fill them with His strength.

Endunamoo is used in the Septuagint (LXX) in Judges to describe Gideon...

Judges 6:34 So the Spirit of the LORD came upon (Lxx has endunamoo here = more literally strengthened = aorist active) Gideon; and he blew a trumpet, and the Abiezrites were called together to follow him. (Comment: Here the strengthening was related to the Spirit's coming upon Gideon. Believers have the advantage of the continually indwelling of the Spirit).

Luke uses endunamoo in describing Paul's conversion writing that

"Saul kept increasing in strength (endunamoo - passive voice = was being empowered - progressive increase in strength as Jewish opposition grew) and confounding (this word in English implies temporary mental paralysis caused by astonishment or profound abasement) the Jews who lived at Damascus by proving ("knitting together" - continually putting together in his mind the OT clues and concluding Jesus was the Messiah) that this Jesus is the Christ." (Acts 9:22)

In his first letter to Timothy Paul (probably alluding to his empowerment in Acts) thanked

"Christ Jesus our Lord, Who" had "strengthened (endunamoo)" him, because He considered (him) faithful, putting (him) into service." (1Ti 1:12)

In his last words to Timothy, Paul illustrated his personal example of being strong in the grace that is in Christ Jesus writing that in the face of everyone deserting him (as might happen to Timothy or any disciple who retains the standard of sound words),

"the Lord stood with me (fulfilling His promise never to “leave or forsake” His children) and strengthened (endunamoo) me, in order that through me the proclamation might be fully accomplished, and that all the Gentiles might hear; and I was delivered out of the lion's mouth." (see note 2 Timothy 4:17)

John Eadie adds that...

the strength of the charge is—Do not enter into battle with such adversaries naked and defenceless, but take to you armour. Do not cover one portion and leave another exposed; do not assume the cuirass and neglect the helmet; but put on “the whole armour.” Do not resort to any arsenal of your own, for its armour is weak and useless; but put on the whole armour of God. “And furthermore, we must neuer leaue these armours as long as we be in thys worlde, for we shall alwayis haue batayle.” Taverner's Postils, p. 495; ed. Oxford, 1841. The genitive, Theou', is that of origination: God provides the armour...Each of its pieces—its girdle, breastplate, boots, shield, helmet, and sword—is furnished by Him. It is armour forged on no earthly anvil, and tempered by no human skill. (John Eadie, D., LL.D. The Epistle of St Paul to the Ephesians)

AND IN THE STRENGTH OF HIS MIGHT: kai en to kratei tes ischuos autou:

High King of Heaven, my victory won,
May I reach Heaven’s joys, O bright Heaven’s Sun!
Heart of my own heart, whatever befall,
Still be my Vision, O Ruler of all. (
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In the strength of His might - This shows how to get this strength and it does not happen by simply knowing these truths or memorizing them.

Guzik puts it this way...

It is not an incantation or a spell. You can’t just walk around saying, “be strong in the Lord and in the power of His might” over and over and it will happen. Christianity isn’t one of those self-help formulas where you go around saying, “Every day, and in every way, I am getting better and better.” Those kind of mental games can accomplish something, but it certainly wasn’t what Paul meant here. (Ephesians 6)

Paul used the identical phrase in chapter 1 praying that the saints would come to know...

and what is the surpassing greatness of His power toward us who believe. These are in accordance with the working of the strength of His might 20 which He brought about in Christ, when He raised Him from the dead, and seated Him at His right hand in the heavenly places, 21 far above all rule and authority and power and dominion, and every name that is named, not only in this age, but also in the one to come. (See notes Ephesians 1:19; 1:20; 1:21)

In Ephesians 1 this phrase strength of His might relates to the surpassing greatness of His power and the power that God used to raise Christ from the dead. It follows that Paul is commanding the saints to be empowered with resurrection power that conquered death and sin and Satan, so that they might be enabled to stand firm.  The victory over the enemy is certain because of Calvary, but as His soldiers we have to daily  win the battle against our relentless foe the Devil (the world system he controls and the residual fallen flesh still in our mortal bodies and at which he can aim fiery missiles). 

Every believer now has the resources within to deal with Satan, no matter what onslaughts the devil may bring. But there however two conditions that must be met -- (1) The believer’s strength must be in the Lord and not in himself and (2) he must utilize the armor—the provision God has made for him. Remember that God would not command us to stand firm in (Ephesians 6:14) had He not provided us with the resources that ensure victory in each and every battle. By faith in God's Word (the fruit of which is obedience), believers can daily walk in the victory of the Cross as more than conquerors...

For whatever is born (perfect tense) of God overcomes (present tense) the world (all of which lies in the power of Satan); and this is the victory that has overcome the world-- our faith. (1John 5:4)

You are from God, little children, and have overcome (perfect tense - this tense speaks of the permanent overcoming effect! PTL!) them; because greater is He who is in you than he who is in the world. (1John 4:4)

(Context: Ammon and Moab were threatening to invade Judah and in 2Chr 20:12 King Jehoshaphat acknowledged his inability to defeat these mortal enemies -- "O our God, wilt Thou not judge them? For we are powerless before this great multitude who are coming against us; nor do we know what to do, but our eyes are on Thee." It was in this background of expressing dependence on God, that He sent His Spirit on the prophet Jahaziel who prophesied) "Listen, all Judah and the inhabitants of Jerusalem and King Jehoshaphat: thus says the LORD to you, 'Do not fear or be dismayed because of this great multitude, for the battle is not yours but God's...17 'You need not fight in this battle; station yourselves, stand and see the salvation of the LORD on your behalf, O Judah and Jerusalem.' Do not fear or be dismayed; tomorrow go out to face them, for the LORD is with you." (2Chr 20:15, 17)

(Comment: Note this is not just "Let go and let God". It is true in one sense that Judah did not have to fight, they did have to believe what God had promised and they did have to obey His instructions to stand. This is the same "pattern" Paul outlines in Ephesians 6:10-18 - [1] Recognize that in spiritual warfare with invisible forces you are totally inadequate and doomed to defeat if you trust in self. [2] Believe that in Christ you have all the strength you need and He will win the b