1 Corinthians (1 Co) 7:28, 32-34, 38

But if you marry you do not sin, and if a girl marries she does not sin. It is just that those who get married will have the normal problems of married life, and I would rather spare you.

What I want is for you to be free of concern. An unmarried man concerns himself with the Lord’s affairs, with how to please the Lord; but the married man concerns himself with the world’s affairs, with how to please his wife; and he finds himself split. Likewise the woman who is no longer married or the girl who has never been married concerns herself with the Lord’s affairs, with how to be holy both physically and spiritually; but the married woman concerns herself with the world’s affairs, with how to please her husband.

So the man who marries his fiancée will do well, and the man who doesn’t marry will do better.