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
Sources for the historicity of Jesus always later documents of lower value. Sources for the historicity of Jesus Christian sources, such as the New Testament books in the Christian Bible, include detailed stories about Jesus but scholars differ on the historicity of specific episodes described in the Biblical accounts of Jesus. The only two events subject to "almost universal assent" are that Jesus was baptized by John the Baptist and was crucified by the order of the Roman Prefect Pontius Pilate. Non-Christian sources that are used to study and establish the historicity of Jesus include Jewish sources such as Josephus, and Roman sources such as Tacitus.