To Echo

Why, jeering Echo! thus renew my pain,
  And give me mine own sorrows back again?
  Speak but to those who hail thee and rejoice,
  Nor render grief's involuntary voice.
  If to these rocks in plaintive mood I come,
  In trust I came, for I believed them dumb;
  And if one name I spoke in trust too free,
  To Silence it was spoken—not to Thee.