Sin

The LORD has sworn;
The LORD will have war against Amalek
from generation to generation.
--Exodus 17:16

AMALEK IS A PICTURE
 OF OUR FALLEN FLESH

See also Commentary on Exodus 17:16

Note: Click here for original sermon by Thomas Chalmers. 

Expulsion is the act of forcing out someone or something, the act of expelling, projecting, or ejecting.