'Heel' in the Bible

and I will put enmity between thee and the woman, and between thy seed and her seed: he shall bruise thy head, and thou shalt bruise his heel.

And after that came forth his brother, and his hand had hold on Esau's heel. And his name was called Jacob. And Isaac was threescore years old when she bare them.

Gad, a troop shall press upon him; But he shall press upon their heel.

A gin shall take him by the heel, And a snare shall lay hold on him.

Yea, mine own familiar friend, in whom I trusted, Who did eat of my bread, Hath lifted up his heel against me.

In the womb he took his brother by the heel; and in his manhood he had power with God:

I speak not of you all: I know whom I have chosen: but that the scripture may be fulfilled: He that eateth my bread lifted up his heel against me.