1 Corinthians 7:36
"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."
Cross References (ranked by relevance)
1 Corinthians 7:9
But if they cannot contain, let them marry: for it is better to marry than to burn.
1 Corinthians 7:37
Nevertheless he that standeth stedfast 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.