Luke 1:37

34 And Mary said unto the angel, How shall this be, seeing I know not a man?

35 And the angel answered and said unto her, The Holy Spirit shall come upon thee, and the power of the Most High shall overshadow thee: wherefore also the holy thing which is begotten shall be called the Son of God.

36 And behold, Elisabeth thy kinswoman, she also hath conceived a son in her old age; and this is the sixth month with her that was called barren.

37 For no word from God shall be void of power.

38 And Mary said, Behold, the handmaid of the Lord; be it unto me according to thy word. And the angel departed from her.

39 And Mary arose in these days and went into the hill country with haste, into a city of Judah;

40 and entered into the house of Zacharias and saluted Elisabeth.