1 Corinthians 7:37-39

37 But if a man stays true to his principles, and there is no obligation to marry, and has the power to keep his feelings under control and stay engaged to her, he does well not to marry.

38 So the man who marries the woman he's engaged to does well, while the one who does not get married does better.

39 A wife is bound to her husband as long as he lives. But if her husband dies,[30] she is free to marry whoever she wants in the Lord.[31]