Song of Solomon 8:6-7

Set me as a seal upon your heart,

    as a seal upon your arm,

for love is strong as death,

    jealousy is fierce as the grave.

Its flashes are flashes of fire,

    the very flame of the Lord.

7 

Many waters cannot quench love,

    neither can floods drown it.

If a man offered for love

    all the wealth of his house,

    he would be utterly despised.