Because he believed that the God of the Old Testament loved the Jews exclusively, Marcion rejected the entire Old Testament and also those new covenant writings that he thought favored Jewish readers—for example, Matthew, Mark, Acts, and Hebrews
Marcion’s selectively Christian views were firmly repudiated by the church in Rome, and Marcion was excommunicated from the church in AD 144. Before long, however, Marcionite churches appeared, modeled on orthodox congregations. They had their own ministers and rituals. For example, they did not use wine at communion, as a result of their ascetic emphasis. Some of the Marcionite beliefs spilled over into the various Gnostic sects, and Marcionites were themselves affected by Gnostic views.