"The Holy Spirit shall descend upon you," answered the angel, "and the Power of the Most High shall overshadow you; and therefore the child will be called 'holy,' and 'Son of God.'
In the reign of Herod, King of Judea, there was a priest named Zechariah, who belonged to the Division called after Abijah. His wife, whose name was Elizabeth, was also a descendant of Aaron.
Again, it was faith that enabled Sarah to conceive (though she was past the age for child-bearing), because she felt sure that he who had given her the promise would not fail her.