1 Corinthians 5:9-10
I wrote to you, in my letter, not to keep company with fornicators;
Galatians 5:19-21
Now the works of the flesh are manifest, which are, fornication, uncleanness, lasciviousness,
Galatians 6:7-8
Be not deceived; God is not mocked; for whatsoever a man sows, the same shall be also reap;
Ephesians 5:5-6
For this ye know, assuredly, that no fornicator, nor unclean person, nor covetous man (who is an idolater), has any inheritance in the Kingdom of Christ and God.
Hebrews 13:4
Let marriage be held in honor among all, and let the bed be undefiled; for fornicators and adulterers God will judge.