Heresy and the Church:
Marcion was born around the year 85. He traveled to Rome around 135 A.D. where he became known in the church and began to teach. He thought there were huge differences between the God revealed in the Old Testament (OT) and the God found in the New Testament (NT). He decided to reject the God of the OT because he believed Him to be an evil craftsman who created an evil world. Marcion put together his own bible, excluding the OT, and including only Paul’s letters and Luke’s gospel. He excluded a few parts of Paul’s letters where Paul refers to the OT and references to hell and/or judgment. Marcion’s unorthodox canon forced the church fathers to begin naming the accepted documents. Marcionite churches spread throughout the Roman world until the beginning of the fourth century.
“And if anyone takes away from the words of the book of this prophecy, God will take away his share in the tree of life and in the holy city, which are described in this book.” (Revelation 22:19 ESV)