1 Corinthians 7:36-40

36But if any man thinketh that he behaveth himself unseemly toward his virgin, if she hath passed the flower of her age, and need so requireth, let him do what he will, he sinneth not: let them marry. 37Nevertheless he that standeth steadfast in his heart, having no necessity, but hath power over his own will, and hath so decreed in his heart that he will keep his virgin, doeth well. 38So then he that giveth her in marriage doeth well; but he that giveth her not in marriage doeth better.

39The wife is bound by the law as long as her husband liveth; but if her husband is dead, she is at liberty to be married to whom she will; only in the Lord. 40But she is happier if she so remain, after my judgment: and I think also that I have the Spirit of God.