1 Corinthians 6:18
Flee immorality. Every other sin that a man commits is outside the body, but the immoral man sins against his own body.
1 Corinthians 15:33
Do not be deceived: "Bad company corrupts good morals."
1 Thessalonians 5:22
Abstain from every form of evil.
1 Timothy 5:14
So I would have younger widows marry, bear children, manage their homes, and give the enemy no occasion for reproach.
2 Timothy 2:22
Now flee from youthful lusts, and pursue righteousness, faith, love and peace, along with those who call on the Lord from a pure heart.
1 Peter 2:11
Beloved, I urge you as aliens and strangers to abstain from fleshly lusts which wage war against your soul.