Thaddeus of Edessa festival, and heard the preachings of John the Baptist (St. John the Forerunner). After being baptized by John the Baptist in the Jordan River, he remained in Palestine. He later met and became a follower of Jesus. He was chosen to be one of the seventy disciples, whom Jesus sent in pairs to preach in the cities and places. After Pentecost and the ascension of Jesus, Thaddeus started preaching the gospel in Mesopotamia, Syria and Persia. Thaddaeus ordained priests in Edessa, converted many to Christianity and built up the church there. He also went to Beirut to preach and founded
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