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.

John 8:3-11
The scribes and Pharisees, however, brought to Him a woman caught in adultery. They made her stand before them / and said, “Teacher, this woman was caught in the act of adultery. / In the Law Moses commanded us to stone such a woman. So what do You say?” ...

Matthew 5:27-28
You have heard that it was said, ‘Do not commit adultery.’ / But I tell you that anyone who looks at a woman to lust after her has already committed adultery with her in his heart.

Proverbs 6:32
He who commits adultery lacks judgment; whoever does so destroys himself.

Exodus 20:14
You shall not commit adultery.

1 Corinthians 6:9-10
Do you not know that the wicked will not inherit the kingdom of God? Do not be deceived: Neither the sexually immoral, nor idolaters, nor adulterers, nor men who submit to or perform homosexual acts, / nor thieves, nor the greedy, nor drunkards, nor verbal abusers, nor swindlers, will inherit the kingdom of God.

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

Leviticus 18:20
You must not lie carnally with your neighbor’s wife and thus defile yourself with her.

2 Samuel 11:2-5
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. ...

Hosea 4:2
Cursing and lying, murder and stealing, and adultery are rampant; one act of bloodshed follows another.

Romans 7:2-3
For instance, a married woman is bound by law to her husband as long as he lives. But if her husband dies, she is released from the law of marriage. / So then, if she is joined to another man while her husband is still alive, she is called an adulteress; but if her husband dies, she is free from that law and is not an adulteress if she marries another man.

Jeremiah 3:8-9
She saw that because faithless Israel had committed adultery, I gave her a certificate of divorce and sent her away. Yet that unfaithful sister Judah had no fear and prostituted herself as well. / Indifferent to her own infidelity, Israel had defiled the land and committed adultery with stones and trees.

Ezekiel 16:38
And I will sentence you to the punishment of women who commit adultery and those who shed blood; so I will bring upon you the wrath of your bloodshed and jealousy.

Matthew 19:9
Now I tell you that whoever divorces his wife, except for sexual immorality, and marries another woman commits adultery.”