You must not commit adultery.

If a man commits adultery with his neighbor's wife, both the adulterer and the adulteress must be put to death. If a man has sexual intercourse with his father's wife, he has exposed his father's nakedness. Both of them must be put to death; their blood guilt is on themselves. If a man has sexual intercourse with his daughter-in-law, both of them must be put to death. They have committed perversion; their blood guilt is on themselves.

For her house sinks down to death, and her paths lead to the place of the departed spirits.

The man who loves wisdom brings joy to his father, but whoever associates with prostitutes wastes his wealth.

This is the way of an adulterous woman: she eats and wipes her mouth and says, "I have not done wrong."

I am afraid that when I come again, my God may humiliate me before you, and I will grieve for many of those who previously sinned and have not repented of the impurity, sexual immorality, and licentiousness that they have practiced.

Hear the word of the Lord, you Israelites! For the Lord has a covenant lawsuit against the people of Israel. For there is neither faithfulness nor loyalty in the land, nor do they acknowledge God. There is only cursing, lying, murder, stealing, and adultery. They resort to violence and bloodshed. Therefore the land will mourn, and all its inhabitants will perish. The wild animals, the birds of the sky, and even the fish in the sea will perish.

It is actually reported that sexual immorality exists among you, the kind of immorality that is not permitted even among the Gentiles, so that someone is cohabiting with his father's wife. And you are proud! Shouldn't you have been deeply sorrowful instead and removed the one who did this from among you? For even though I am absent physically, I am present in spirit. And I have already judged the one who did this, just as though I were present.read more.
When you gather together in the name of our Lord Jesus, and I am with you in spirit, along with the power of our Lord Jesus, turn this man over to Satan for the destruction of the flesh, so that his spirit may be saved in the day of the Lord. Your boasting is not good. Don't you know that a little yeast affects the whole batch of dough? Clean out the old yeast so that you may be a new batch of dough -- you are, in fact, without yeast. For Christ, our Passover lamb, has been sacrificed. So then, let us celebrate the festival, not with the old yeast, the yeast of vice and evil, but with the bread without yeast, the bread of sincerity and truth. I wrote you in my letter not to associate with sexually immoral people. In no way did I mean the immoral people of this world, or the greedy and swindlers and idolaters, since you would then have to go out of the world. But now I am writing to you not to associate with anyone who calls himself a Christian who is sexually immoral, or greedy, or an idolater, or verbally abusive, or a drunkard, or a swindler. Do not even eat with such a person. For what do I have to do with judging those outside? Are you not to judge those inside? But God will judge those outside. Remove the evil person from among you.

Do you not know that the unrighteous will not inherit the kingdom of God? Do not be deceived! The sexually immoral, idolaters, adulterers, passive homosexual partners, practicing homosexuals,

Marriage must be honored among all and the marriage bed kept undefiled, for God will judge sexually immoral people and adulterers.

Her house is the way to the grave, going down to the chambers of death.

But to the cowards, unbelievers, detestable persons, murderers, the sexually immoral, and those who practice magic spells, idol worshipers, and all those who lie, their place will be in the lake that burns with fire and sulfur. That is the second death."