1 Corinthians 6:12-17

All things are lawful for me; but not all things are expedient. All things are lawful for me; but I will not be brought under the power of any. Meats for the belly, and the belly for meats: but God shall bring to nought both it and them. But the body is not for fornication, but for the Lord; and the Lord for the body: and God both raised the Lord, and will raise up us through his power. Know ye not that your bodies are members of Christ? shall I then take away the members of Christ, and make them members of a harlot? God forbid. 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.