18 Neither shalt thou commit adultery.
Deuteronomy 5:18 Cross References - KJV_Cambridge
Exodus 20:14
14 Thou shalt not commit adultery.
Leviticus 20:10
10 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.
Proverbs 6:32-33
Matthew 5:27-28
Luke 18:20
20 Thou knowest the commandments, Do not commit adultery, Do not kill, Do not steal, Do not bear false witness, Honour thy father and thy mother.