Zachariah (Hebrew Zəḵaryā, 'Remember Yah') was a Jewish priest who served in the Temple at Jerusalem during the reign of Herod the Great, and the father of John the Forerunner (John the Baptist). He belonged to the priestly division of Abijah, one of the twenty-four courses of temple service established by King David, and was married to Elizabeth, herself of priestly descent from Aaron. Both are described in the Gospel of Luke as righteous before God, walking blamelessly in all the commandments.
While serving his assigned week of temple duty, Zachariah was selected by lot to burn incense at the altar of incense — an honor that came to a priest only once in a lifetime. As he performed this duty, the angel Gabriel appeared and announced that his barren and aged wife Elizabeth would conceive and bear a son named John, who would be great before the Lord and would go before Him in the spirit and power of Elijah. Zachariah questioned the promise, citing his and Elizabeth's advanced age, and Gabriel struck him mute until the day the prophecy would be fulfilled.
At the child's circumcision on the eighth day, when relatives intended to name the boy Zechariah after his father, Elizabeth declared that his name would be John. When the protesting kin appealed to Zachariah, he wrote on a tablet, 'His name is John,' and his speech was immediately restored. He then uttered the prophetic canticle known as the Benedictus, recorded in Luke, blessing God for redeeming His people and foretelling his son's role as prophet of the Most High. The Eastern Orthodox Church commemorates Zachariah on September 5, together with Elizabeth.