A royal virgin of the house of David is chosen. She is to bear a holy child, one who is both God and man. She is to conceive him in her soul before she conceives him in her body. In the face of so unheard of an event she is to know no fear through ignorance of the divine plan; the angel tells her what is to be accomplished in her by the Holy Spirit. She believes that there will be no loss of virginity, she who is soon to be the mother of God. Why should she lose heart at this new form of conceiving when she has been promised that it will be effected through the power of the Most High? She believes, and her faith is confirmed by the witness of a previous wonder: against all expectation Elizabeth is made fruitful. God has enabled a barren woman to be with child; he must be believed when he makes the same promise to a virgin.