Then said Mary unto the angel, How shall this be, seeing I know not a man? And the angel answered and said unto her, The Holy Spirit shall come upon you, and the power of the Highest shall overshadow you: therefore also that holy thing which shall be born of you shall be called the Son of God. And, behold, your cousin Elizabeth, she has also conceived a son in her old age: and this is the sixth month with her, who was called barren. For with God nothing shall be impossible. And Mary said, Behold the handmaid of the Lord; be it unto me according to your word. And the angel departed from her. (Luke 1:34-38)