'Virgin daughter' in the Bible

But if any one thinketh that he behaveth improperly in respect to his virgin [daughter], if she pass the flower of her age [without being married], and if it must be so, let him do what he will, he committeth no sin; let them marry.

But if any one is settled in his purpose, and is under no necessity, but is free to act as he will, and hath determined in his heart to keep his own virgin daughter [unmarried], he doeth well.