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.

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.

1 Corinthians 6:9
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,

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.

1 Corinthians 7:38
So then, he who marries the virgin does well, but he who does not marry her does even better.

Galatians 5:19
The acts of the flesh are obvious: sexual immorality, impurity, and debauchery;

Galatians 5:21
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.

1 Thessalonians 4:6
and no one should ever violate or exploit his brother in this regard, because the Lord will avenge all such acts, as we have already told you and solemnly warned you.

1 Timothy 4:3
They will prohibit marriage and require abstinence from certain foods that God has created to be received with thanksgiving by those who believe and know the truth.

Hebrews 12:16
See to it that no one is sexually immoral, or is godless like Esau, who for a single meal sold his birthright.

Marriage is honorable in all, and the bed undefiled: but fornicators and adulterers God will judge.