“For jealousy arouses a husband’s fury, and he will show no mercy when he takes revenge. He will not accept any compensation; he will refuse a bribe, however great it is.”
— Proverbs 6:34-35
God is a jealous God. He’s particularly infuriated by sexual infidelity because it parallels spiritual adultery. These sins tell God He is not enough. One way to escape the above-referenced eternal wrath poured out on adulterers is to marry well (Prov. 5:15-20). Deep intimacy and interdependence in marriage helps forestall any adulterous longings.