Leviticus 20:10

If a man commits adultery with the wife of an Israelite, both he and the woman should be put to death.

Exodus 20:14

Do not commit adultery.

Leviticus 18:20

Do not have sexual intercourse with your neighbor's wife and become unclean with her.

Deuteronomy 5:18

Do not commit adultery.

Deuteronomy 22:22-24

If a man is caught having sexual intercourse with another mans wife, then both of them shall die! Both the man and the woman committing adultery must be killed. Thus you shall purge the evil from Israel.

2 Samuel 12:13

David said to Nathan: I have sinned against Jehovah. Nathan replied: Jehovah has taken away your sin. You will not die.

Ezekiel 23:45-47

But they, righteous men, will judge them with the judgment of adulteresses and with the judgment of women who shed blood, because they are adulteresses and blood is on their hands.

Treasury of Scripture Knowledge

Summary

And the man that committeth adultery with another man's wife, even he that committeth adultery with his neighbour's wife, the adulterer and the adulteress shall surely be put to death.

Bible References

The adulterer

Deuteronomy 22:22
If a man is caught having sexual intercourse with another mans wife, then both of them shall die! Both the man and the woman committing adultery must be killed. Thus you shall purge the evil from Israel.
2 Samuel 12:13
David said to Nathan: I have sinned against Jehovah. Nathan replied: Jehovah has taken away your sin. You will not die.
Ezekiel 23:45
But they, righteous men, will judge them with the judgment of adulteresses and with the judgment of women who shed blood, because they are adulteresses and blood is on their hands.

General references

Exodus 20:14
Do not commit adultery.
Leviticus 18:20
Do not have sexual intercourse with your neighbor's wife and become unclean with her.
Numbers 5:13
and may have had sexual intercourse with another man without her husband's knowledge. She may have kept it secret if there were no witnesses to accuse her and she was not caught in the act.
Deuteronomy 22:22
If a man is caught having sexual intercourse with another mans wife, then both of them shall die! Both the man and the woman committing adultery must be killed. Thus you shall purge the evil from Israel.