1 Corinthians 6:13-18

Food is for the stomach and the stomach for food, but God will do away with both of them. The body is not intended for sexual immorality, but for the Lord, and the Lord is for the body [to save, sanctify, and raise it again because of the sacrifice of the cross]. And God has not only raised the Lord [to life], but will also raise us up by His power. Do you not know that your bodies are members of Christ? Am I therefore to take the members of Christ and make them part of a prostitute? Certainly not! Do you not know that the one who joins himself to a prostitute is one body with her? For He says, “THE TWO SHALL BE ONE FLESH.” [Gen 2:24] But the one who is united and joined to the Lord is one spirit with Him. Run away from sexual immorality [in any form, whether thought or behavior, whether visual or written]. Every other sin that a man commits is outside the body, but the one who is sexually immoral sins against his own body.