. “Marcion preached that the god who sent Jesus into the world was a different, higher deity than the creator god of Judaism. He considered himself a follower of Paul the Apostle, who he believed to have been the only true apostle of Jesus Christ.
Church Fathers such as Justin Martyr… and Tertullian denounced Marcion as a heretic, and he was excommunicated … around 144 CE. He published the first known canon of Christian scriptures, which contained ten Pauline epistles (omitting the Pastoral epistles) and a shorter version of the Gospel of Luke. This made him a
catalyst in the process of the development of the New Testament canon by forcing the proto-orthodox Church to respond to his canon.” [Wikipedia]