Matthew 5:28
But I say to you, that whoever looketh on a woman to lust after her, hath committed adultery with her already in his heart.
1 Corinthians 6:9-11
Know ye not, that wrongdoers shall not inherit the kingdom of God? Be not deceived; neither fornicators, nor idolaters, nor adulterers, nor the effeminate, nor abusers of themselves with mankind,
1 Corinthians 10:20
Nay, but that what they sacrifice, they sacrifice to demons, and not to God; and I would not that ye should have communion with demons.
Galatians 5:19-21
Now the works of the flesh are manifest; such as fornication, uncleanness, wantonness,
Hebrews 13:4
Let marriage be honored in all respects, and the bed be undefiled; but whoremongers and adulterers God will judge.