Do you not know that your bodies are members of Christ? Shall I then take Christ's members and make them the members of a prostitute? Of course not! (Or) do you not know that anyone who joins himself to a prostitute becomes one body with her? For "the two," it says, "will become one flesh." But whoever is joined to the Lord becomes one spirit with him. Avoid immorality. Every other sin a person commits is outside the body, but the immoral person sins against his own body. Do you not know that your body is a temple of the holy Spirit within you, whom you have from God, and that you are not your own? For you have been purchased at a price. Therefore, glorify God in your body.
1 Corinthians 6:15-20 NAB