Henry Wadsworth Longfellow
The Sifting of Peter
In St. Luke's Gospel we are told
How Peter in the days of old
  Was sifted;
And now, though ages intervene,
Sin is the same, while time and scene
  Are shifted.
Satan desires us, great and small,
As wheat to sift us, and we all
  Are tempted;
Not one, however rich or great,
Is by his station or estate
  Exempted.
No house so safely guarded is
But he, by some device of his,
  Can enter;
No heart hath armor so complete
But he can pierce with arrows fleet
  Its centre.
For all at last the cock will crow,
Who hear the warning voice, but go
  Unheeding,
Till thrice and more they have denied
The Man of Sorrows, crucified
  And bleeding.
One look of that pale suffering face
Will make us feel the deep disgrace
  Of weakness;
We shall be sifted till the strength
Of self-conceit be changed at length
  To meekness.
Wounds of the soul, though healed will ache;
The reddening scars remain, and make
  Confession;
Lost innocence returns no more;
We are not what we were before
  Transgression.
But noble souls, through dust and heat,
Rise from disaster and defeat
  The stronger,
And conscious still of the divine
Within them, lie on earth supine
  No longer.