He will go before him in the spirit and power of Elijah, 'to turn the hearts of the fathers to the children,' and the disobedient to the wisdom of the just; to make ready a people prepared for the Lord."

 Mary was betrothed to Joseph. Betrothal lasted for a year and was quite as binding as marriage. It could be dissolved only by divorce. Should the man to whom a girl was betrothed die, in the eyes of the law she was a widow. In the law there occurs the strange-sounding phrase, "a virgin who is a widow." 