1 Corinthians 6:16-19

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. Or know ye not that your body is a temple of the Holy Spirit which is in you, which ye have from God? and ye are not your own