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 he is sometimes alternatively called John the Baptizer. John used baptism as the central symbol or sacrament of his messianic movement. Most scholars agree that John baptized Jesus. Some scholars believe Jesus was a follower or disciple of John. The New Testament texts in which John is mentioned portray him as rejecting this idea, although several New Testament accounts report that some of Jesus' early followers had previously been followers of John. John the Baptist is also mentioned by the Jewish historian Josephus. Some scholars maintain that John was influenced by the semi-ascetic Essenes, who expected an apocalypse and practiced