Meats are for the belly, and the belly for meats; yet God will destroy both it and them. But the body is not for fornication, but for the Lord, and the Lord for the body. And God hath both raised up the Lord, and will also raise us up by his power. Know ye not, that your bodies are members of Christ? Shall I then take the members of Christ, and make them the members of an harlot? read more.
God forbid. Know ye not, that he who is joined to an harlot is one body? For they two, saith he, shall be one flesh. But he that is joined to the Lord is one Spirit. Flee fornication. Every sin that a man doth, is without the body; but he that committeth fornication, sinneth against his own body. Know ye not, that your body is the temple of the Holy Ghost, which is in you, which ye have from God? And ye are not your own: For ye are bought with a price: therefore glorify God with your body and your spirit, which are God's.

1 Corinthians 7:1-9

Now concerning the things whereof ye wrote to me, It is good for a man, not to touch a woman. Yet, to avoid fornication, let every man have his own wife; and let every woman have her own husband. Let the husband render the debt to the wife; and in like manner the wife also to the husband. read more.
The wife hath not power over her own body, but the husband; and in like manner the husband also hath not power over his own body, but the wife. Withdraw not from each other, unless it be by consent for a time, that ye may give yourselves to prayer, and may come together again, lest Satan tempt you through your incontinence. But I say this by way of advice, not by way of precept. For I would that all men were even as myself: but every one hath his proper gift from God, one after this manner, another after that. But to the unmarried and the widows I say, It is good for them, if they remain even as I. But if they have not power over themselves, let them marry; for it is better to marry than to burn.