It was Abraham Heschel who - to the best of my knowledge - was first to make the connection between the 'only the ten commandments' position of the Christian minim and ideas in the gospels and early Christianity. As Heschel notes the basic understanding comes down to:Ulan: Didn't the Christians do away with the Mosaic Laws in more general terms? Frex, where did the Sabbath go? And where do the Marcionites come into play here?
1. a division between the attitudes of R Ishmael (Sadducee) vs. R Akiva (Pharisee) on the question of how to define 'heavenly Torah.' The former identified the 'heavenly torah' with the ten commandments and distinguished what was said or given by Moses and the latter who said that the Torah as we know have it was given to Moses at Sinai.
2. the earliest known Karaite exegetes perpetuate the position of the Sadducees at least insofar as emphasizing Moses's role as a 'narrator' throughout the Torah (and thus distinguishing even further between 'what God said' and 'what Moses said' in the Torah
3. I have boiled down a few main arguments which I think are indicative of this position (even though they don't exactly limit themselves to 'the ten commandments' or the gospel per se:
i Moses said 'yes' to divorce, Jesus said 'Moses said x but God said differently' (in Genesis 1) echoed in Qumran (Sadducean literature)
ii ten commandments don't mention circumcision (hence Christians don't need to circumcise) a repeated position associated with proselytes including Agrippa, Aquila and even Hadrian I believe. I think this was the original Pauline understanding
iii sacrifices not part of ten commandments hence Christians are justified in rejecting sacrifices
iv no instruction to build tabernacle in the ten commandments hence Christians don't venerate with an emphasis on physical objects or sacred places
v no subordination of women in the ten commandments hence Jesus was free to talk openly with women
etc
4. If I am right that a short form of the ten commandments existed in the synagogues and that Christians took these shortened forms (almost 'ten words' - compare the dictum 'We have learned that there were ten [words] and the rabbis said that all of them were said in one word') to be the original the development of the gospel scene where Jesus declares that he (formerly) said 'do not lust.'
5. Further Jesus healing on the Sabbath isn't necessarily a contradiction to this theory. The short form of the forth commandment is 'observe (shamar) the Sabbath.' I am certain that this meant more than simply calculate what the seventh day of the week was. But notice what Epiphanius says about the Marcionites and the seventh day:
The Sabbath fast extended well beyond the Marcionites (or at least was retained in the Latin Church which I have always argued to be neo-Marcionite) http://www.google.com/url?sa=t&rct=j&q= ... 8437,d.cGE (read this argument especially, very smart scholar especially as he concludes his discussion with mention of the correctness of my teacher and mentor Rory (IRM) Boid). The abandonment of water and meat consumption is widely reported in Jewish sectarian groups immediately following the destruction of the temple.Celibacy too is preached by Marcion himself, and he preaches fasting on the Sabbath. Marcionite supposed mysteries are celebrated in front of the catechumens. He uses water in the mysteries. He claims that we should fast on the Sabbath for the following reason: 'Since it is the rest of the God of the Jews who made the world and rested the seventh day, let us fast on this day, so as to do nothing congenial to the God of the Jews.'
This idea that the Sabbath fast was rooted in anti-Jewish sentiment is stupid. While the Gemara forbids fasting on the Sabbath the idea existed at one time in Judaism http://books.google.com/books?id=VHt-5N ... ns&f=false and Samaritanism http://books.google.com/books?id=matqZi ... ns&f=false
The reality is that the observed Marcionite practice of fasting on the Sabbath undoubtedly proves once and for all that they were a remnant of a very old form of Judaism, one which believed in two powers in heaven and I believe the sanctity of the ten commandments (and the counterfeit nature of the Torah of Moses written by Ezra).