Bible Verses About Chastity: Keep the body in

Know ye not that your bodies are members of Christ? shall I then take away the members of Christ, and make them members of a harlot? God forbid.

Or know ye not that he that is joined to a harlot is one body? for, The twain, saith he, shall become one flesh.

But he that is joined unto the Lord is one spirit.

Flee fornication. Every sin that a man doeth is without the body; but he that committeth fornication sinneth against his own body.