Luke 1:2-7

just as those who from the beginning were eyewitnesses and ministers of the word delivered them to us, it seemed good to me also, having had perfect understanding of all things from the very first, to write to you an orderly account, most excellent Theophilus, that you may know the certainty of those things in which you were instructed. There was in the days of Herod, the king of Judea, a certain priest named Zacharias, of the division of Abijah. His wife was of the daughters of Aaron, and her name was Elizabeth. And they were both righteous before God, walking in all the commandments and ordinances of the Lord blameless. But they had no child, because Elizabeth was barren, and they were both well advanced in years.