Genesis 4:5-6

4:5 but with Cain and his offering he was not pleased. So Cain became very angry, and his expression was downcast.

4:6 Then the Lord said to Cain, “Why are you angry, and why is your expression downcast?

Proverbs 6:34-35

6:34 for jealousy kindles a husband’s rage,

and he will not show mercy when he takes revenge.

6:35 He will not consider any compensation;

he will not be willing, even if you multiply the compensation.

The Song of Songs 8:7

8:7 Surging waters cannot quench love;

floodwaters cannot overflow it.

If someone were to offer all his possessions to buy love,

the offer would be utterly despised.