1 Corinthians 7:2-3, 5, 34, 36
2 Nevertheless, to avoid fornication, let every man have his own wife, and let every woman have her own husband.
3 Let the husband render unto the wife due benevolence: and likewise also the wife unto the husband.
5 Defraud ye not one the other, except it be with consent for a time, that ye may give yourselves to fasting and prayer; and come together again, that Satan tempt you not for your incontinency.
34 There is difference also between a wife and a virgin. The unmarried woman careth for the things of the Lord, that she may be holy both in body and in spirit: but she that is married careth for the things of the world, how she may please her husband.
36 But if any man think that he behaveth himself uncomely toward his virgin, if she pass the flower of her age, and need so require, let him do what he will, he sinneth not: let them marry.