Bible Verses About Chastity: Keep the body in

Know you not that your bodies are the members of Christ? Shall I then take the members of Christ and make them the members of an harlot? God forbid!

Or know you not that he who is joined to a harlot is made one body? For they shall be, saith he, two in one flesh.

But he who is joined to the Lord is one spirit.

Fly fornication. Every sin that a man doth is without the body: but he that committeth fornication sinneth against his own body.