Here's another one to refute. Basically the claim that St. Paul was really a Gnostic, in part due to the heretic Valentinus tracing his episcopal lineage back to him. Also the claim that the Gospel of St. Luke and the Acts of the Apostles were really derived from the works of the heretic Marcion.
I may be no expert in Scripture, but I think I can see right through the second claim claim, for example:
This touching incident, simply and beautifully told in the sixteen Greek words of Marcion (MARCION, 4, 30.), is spun out, by the author of Luke (LUKE, 7.37 and 38.), into more than three times the number, with no improvement in the story.
That could easily mean that Marcion edited the text to simplify and make it sound better. One similar example occurs in Apocalypse 18:2, where scholars believe a later writer omitted 'unclean beast' from the text to avoid repetition.
Anyway, leave your thoughts and refutations.
Thanks in advance and God bless.