1 Corinthians 6:16-18

New Matthew Bible

¹⁶ Do you not understand that he who couples himself with a harlot has become one body with her? For two (says he) shall be one flesh. ¹⁷ But he who is joined to the Lord is one spirit with him.

¹⁸ Flee fornication. All sins that a man does are outside the body, but he who is a fornicator sins against his own body.