Jesus replies that he must "be in his father's house" (). The Synoptic accounts of Jesus' baptism are all preceded by information about John the Baptist. They show John preaching penance and repentance for the remission of sins and encouraging the giving of alms to the poor () as he baptizes people in the area of the Jordan River around Perea and foretells () the arrival of someone "more powerful" than he. Later, Jesus identifies John as "the Elijah who was to come" (, ), the prophet who was expected to arrive before the "great and terrible day of the Lord"
John the Baptist of Elijah in , who also wore a garment of hair and a leather belt. In Matthew, Jesus explicitly teaches that John is "Elijah who was to come" (Matt. 11:14 – see also Matt. 17:11–13); many Christian theologians have taken this to mean that John was Elijah's successor. In the Gospel of John, John the Baptist explicitly denies being Elijah. In the annunciation narrative in Luke, an angel appears to Zechariah, John's father, and tells him that John "will turn many of the sons of Israel to the Lord their God," and that he will go forth "in the spirit