1 Corinthians 5:9-10
I wrote you in my letter to stop associating with sexually immoral people --
Galatians 5:19-21
Now the practices of the lower nature are clear enough: Sexual immorality, impurity, sensuality,
Galatians 6:7-8
Do not be deceived anymore; God is not to be scoffed at. A person will reap just what he sows, whatever it is.
Ephesians 5:5-6
For you may be absolutely sure that no one who is sexually impure, immoral or greedy for gain (for that is idolatry) can have a part in the kingdom of Christ and God.
Hebrews 13:4
Marriage must be held in honor by all, and the marriage relations kept sacred. Persons who are sexually vicious and immoral God will punish.