Luke 1:15-20

for he will be great and distinguished in the sight of the Lord; and will never drink wine or liquor, and he will be filled with and empowered to act by the Holy Spirit while still in his mother’s womb. [Num 6:3] He will turn many of the sons of Israel back [from sin] to [love and serve] the Lord their God. It is he who will go as a forerunner before Him in the spirit and power of Elijah, TO TURN THE HEARTS OF THE FATHERS BACK TO THE CHILDREN, and the disobedient to the attitude of the righteous [which is to seek and submit to the will of God]—in order to make ready a people [perfectly] prepared [spiritually and morally] for the Lord.” [Is 40:3; Mal 4:5, 6] And Zacharias said to the angel, “How will I be certain of this? For I am an old man and my wife is advanced in age.” The angel replied and said to him, “I am Gabriel; I stand and minister in the [very] presence of God, and I have been sent [by Him] to speak to you and to bring you this good news. [Dan 8:16; 9:21] Listen carefully, you will be continually silent and unable to speak until the day when these things take place, because you did not believe what I told you; but my words will be fulfilled at their proper time.”