Song of Songs 8:6-7

For Love is as strong as Death, Jealousy relentless as Sheol. The flash of it is a flash of fire, a flame of the LORD himself.

This is why a man leaves his father and mother and becomes attached to his wife, and they become one flesh.

1 Corinthians 13:4-7
Love is always patient and kind; love is never jealous; love is not boastful or conceited, it is never rude and never seeks its own advantage, it does not take offence or store up grievances. Love does not rejoice at wrongdoing, but finds its joy in the truth. It is always ready to make allowances, to trust, to hope and to endure whatever comes