I Corinthians 7:36-40

But if any man thinks he is behaving improperly toward his virgin, if she is past the flower of youth, and thus it must be, let him do what he wishes. He does not sin; let them marry. Nevertheless he who stands steadfast in his heart, having no necessity, but has power over his own will, and has so determined in his heart that he will keep his virgin, does well. So then he who gives her in marriage does well, but he who does not give her in marriage does better. A wife is bound by law as long as her husband lives; but if her husband dies, she is at liberty to be married to whom she wishes, only in the Lord. But she is happier if she remains as she is, according to my judgment—and I think I also have the Spirit of God.