1 Corinthians 6:15-19

Do you not know that your bodies are a part of Christ? So then, should I take a part of Christ and make it a part of a harlot? Let it not be so! And do you not know that whoever is joined to a harlot becomes one body? "For the two," he said, "shall be as one flesh." But whoever is joined to the Lord is one spirit. Flee from fornication. Every sin whatsoever that a man commits is outside of the body, but whoever fornicates, sins against his own body. Or do you not know that your bodies are the Temple of the Holy Spirit, who is in you, whom you have from God, and that you are not your own?