Now while he [Zechariah] was serving as priest … there appeared to him an angel of the Lord standing on the right side of the altar of incense. And Zechariah was troubled when he saw him … But the angel said to him, “Do not be afraid, Zechariah, for your prayer has been heard, and your wife Elizabeth will bear you a son, and you shall call his name John. And you will have joy and gladness, and many will rejoice at his birth, for he will be great before the Lord.” (Luke 1:8a, 11-12a, 13-15a)