Matthew 5:28
but I say unto you, That every one who looketh upon a woman to lust after her, hath already committed adultery with her in his heart.
1 Corinthians 6:9-11
Know ye not that the unrighteous shall not inherit the kingdom of God? Be not deceived; neither fornicators, nor idolaters, nor adulterers, nor effeminate, nor sodomites,
1 Corinthians 10:20
But that what the Gentiles sacrifice, they sacrifice to daemons, and not to God: and I would not have you in communion with daemons.
Galatians 5:19-21
Now the works of the flesh are evident, which are these: adultery, whoredom, impurity, lasciviousness,
Hebrews 13:4
Marriage is honourable for all persons, and the marriage bed undefiled: but whoremongers and adulterers God will judge.