And the L God said unto the serpent, Because thou hast done this, thou art cursed above all cattle, and above every beast of the field; upon thy belly thou shalt go, and dust shalt thou eat all the days of thy life: And I will put enmity between thy seed and her seed; it shall bruise thy head, and thou shalt bruise his heel.

-Bible (Old Testament)
ORDGenesis 3:14^15.

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

-Bible (Old Testament)
Psalms 41:9.

Our Meistersinger, thou set breath in steel; And it was thou who on the boldest heel Stood up and flung the span on even wing Of that great Bridge, our Myth, whereof I sing.

-Crane, (Harold) Hart
  On Whitman and Brooklyn Bridge. The Bridge,'Cape Hatteras'.

The world rolls under the long thrust of his heel. Over the cage floor the horizons come.

-Hughes,Ted (Edward James)
  'The  Jaguar'.

   There be triple ways to take, of the eagle or the snake, Or the way of a man with a maid; But the sweetest way to me is a ship's upon the sea In the heel of the North-East Trade.

-Kipling, (Joseph) Rudyard
  'The Long Trail'.

I have made my song a coat Covered with embroideries Out of old mythologies From heel to throat; But the fools caught it, Wore it in the world's eyes As though they'd wrought it. Song, let them take it, For there's more enterprise In walking naked.

-Yeats,W(illiam) B(utler)
  'A Coat', complete poem. Collected in Responsibilities (1914).