Matthew 5:28
But I tell you that anyone who looks at a woman to lust after her has already committed adultery with her in his heart.

1 Corinthians 6:18
Flee from sexual immorality. Every other sin a man can commit is outside his body, but he who sins sexually sins against his own body.

Hebrews 13:4
Marriage should be honored by all and the marriage bed kept undefiled, for God will judge the sexually immoral and adulterers.

1 Thessalonians 4:3-4
For it is God’s will that you should be holy: You must abstain from sexual immorality; / each of you must know how to control his own body in holiness and honor,

Galatians 5:19-21
The acts of the flesh are obvious: sexual immorality, impurity, and debauchery; / idolatry and sorcery; hatred, discord, jealousy, and rage; rivalries, divisions, factions, / and envy; drunkenness, orgies, and the like. I warn you, as I did before, that those who practice such things will not inherit the kingdom of God.

James 1:14-15
But each one is tempted when by his own evil desires he is lured away and enticed. / Then after desire has conceived, it gives birth to sin; and sin, when it is full-grown, gives birth to death.

Romans 13:13-14
Let us behave decently, as in the daytime, not in carousing and drunkenness, not in sexual immorality and debauchery, not in dissension and jealousy. / Instead, clothe yourselves with the Lord Jesus Christ, and make no provision for the desires of the flesh.

Ephesians 5:3-5
But among you, as is proper among the saints, there must not be even a hint of sexual immorality, or of any kind of impurity, or of greed. / Nor should there be obscenity, foolish talk, or crude joking, which are out of character, but rather thanksgiving. / For of this you can be sure: No immoral, impure, or greedy person (that is, an idolater) has any inheritance in the kingdom of Christ and of God.

1 Peter 2:11
Beloved, I urge you, as foreigners and exiles, to abstain from the desires of the flesh, which war against your soul.

Colossians 3:5-6
Put to death, therefore, the components of your earthly nature: sexual immorality, impurity, lust, evil desires, and greed, which is idolatry. / Because of these, the wrath of God is coming on the sons of disobedience.

2 Samuel 12:9-10
Why then have you despised the command of the LORD by doing evil in His sight? You put Uriah the Hittite to the sword and took his wife as your own. You have slain him with the sword of the Ammonites. / Now, therefore, the sword will never depart from your house, because you have despised Me and have taken the wife of Uriah the Hittite to be your own.’

Genesis 39:9
No one in this house is greater than I am. He has withheld nothing from me except you, because you are his wife. So how could I do such a great evil and sin against God?”

Leviticus 20:10
If a man commits adultery with another man’s wife—with the wife of his neighbor—both the adulterer and the adulteress must surely be put to death.

Deuteronomy 22:22
If a man is found lying with another man’s wife, both the man who slept with her and the woman must die. You must purge the evil from Israel.

2 Samuel 11:2-4
One evening David got up from his bed and strolled around on the roof of the palace. And from the roof he saw a woman bathing—a very beautiful woman. / So David sent and inquired about the woman, and he was told, “This is Bathsheba, the daughter of Eliam and the wife of Uriah the Hittite.” / Then David sent messengers to get her, and when she came to him, he slept with her. (Now she had just purified herself from her uncleanness.) Then she returned home.