An Oath

A month ago Lysander pray'd
  To Jove, to Cupid, and to Venus,
  That he might die if he betray'd
  A single vow that pass'd between us.
  Ah, careless gods, to hear so ill
  And cheat a maid on you relying!
  For false Lysander's thriving still,
  And 'tis Corinna lies a-dying.