Luke 1:15-20

and he will be one of the great ones in the sight of God. He will drink no wine or strong drink, but he will be filled with the Holy Spirit even while still in his mother’s womb. And he will persuade many in Israel to convert and turn back to the Lord their God. He will go before the Lord as a forerunner, with the same power and anointing as Elijah the prophet. He will be instrumental in turning the hearts of the fathers in tenderness back to their children and the hearts of the disobedient back to the wisdom of their righteous fathers. And he will prepare a united people who are ready for the Lord’s appearing.” Zechariah asked the angel, “How do you expect me to believe this? I’m an old man and my wife is too old to give me a child. What sign can you give me to prove this will happen?” Then the angel said, “I am Gabriel. I stand beside God himself. He has sent me to announce to you this good news. But now, since you did not believe my words, you will be stricken silent and unable to speak until the day my words have been fulfilled at their appointed time and a child is born to you. That will be your sign!”