Marcion believed this understanding of Jesus was taught by Paul himself, and so, naturally, his canon included the ten letters of Paul available to him (all those in the New Testament apart from the pastoral Epistles of 1 and 2 Timothy and Titus); and since Paul sometimes referred to his “Gospel,” Marcion included a Gospel in his canon, a form of what is now the Gospel of Luke. And that was all. Marcion’s canon consisted of eleven books: there was no Old Testament, only one Gospel, and ten Epistles.
