Song of Solomon 8:6-9

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. 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. We have a little sister, and she has no breasts. What shall we do for our sister on the day when she is spoken for? If she is a wall, we will build on her a battlement of silver, but if she is a door, we will enclose her with boards of cedar.