Song of Songs (Song of Solomon) 8:6-7

Set me as a seal on your heart,

      as a seal on your arm;

For stern as death is love,

      relentless as the nether world is devotion;
      its flames are a blazing fire.

Deep waters cannot quench love,

      nor floods sweep it away.

Were one to offer all he owns to purchase love,

      he would be roundly mocked.