Luke 1:2-12

2 even as they were delivered unto us by those who from the beginning were eyewitnesses and ministers of the Word,
3 it seemed good to me also, having had perfect understanding of things from the very first, to write unto thee in order, most excellent Theophilus,
4 that thou mightest know the certainty of those things wherein thou hast been instructed.
5 There was in the days of Herod, the king of Judea, a certain priest named Zacharias, of the priestly course of Abijah; and his wife was of the daughters of Aaron, and her name was Elizabeth.
6 And they were both righteous before God, walking blameless in all the commandments and ordinances of the Lord.
7 And they had no child because Elizabeth was barren, and they both were now well stricken in years.
8 And it came to pass that while he executed the priest's office before God in the order of his course,
9 according to the custom of the priest's office, his lot was to burn incense when he went into the temple of the Lord.
10 And the whole multitude of the people were praying outside at the time of incense.
11 And there appeared unto him an angel of the Lord, standing on the right side of the altar of incense.
12 And when Zacharias saw him he was troubled, and fear fell upon him.