But did that appear in the Gospel of Marcion? The ending of Adv Marc:
When they were doubting whether He were not a phantom----nay, were supposing that He was one----He says to them, "Why are ye troubled, and why do thoughts arise in your hearts? See1697 my hands and my feet, that it is I myself; for a spirit hath not bones, as ye see me have."1698 [7] Now Marcion was unwilling to expunge from his Gospel some statements which even made against him----I suspect, on purpose, to have it in his power from the passages which he did not suppress, when he could have done so, either to deny that he had expunged anything, or else to justify his suppressions, if he made any. But he spares only such passages as he can subvert quite as well by explaining them away as by expunging them from the text. Thus, in the passage before us, he would have the words, "A spirit hath not bones, as ye see me have," so transposed, as to mean, "A spirit, such as ye see me to be, hath not bones; "that is to say, it is not the nature of a spirit to have bones. But what need of so tortuous a construction, when He might have simply said, "A spirit hath not bones, even as you observe that I have not?" [8] Why, moreover, does He offer His hands and His feet for their examination----limbs which consist of bones----if He had no bones? Why, too, does He add, "Know that it is I myself,"1699 when they had before known Him to be corporeal? Else, if He were altogether a phantom, why did He upbraid them for supposing Him to be a phantom? But whilst they still believed not, He asked them for some meat,1700 for the express purpose of showing them that He had teeth.1701
[9] And now, as I would venture to believe,1702 we have accomplished our undertaking. We have set forth Jesus Christ as none other than the Christ of the Creator. Our proofs we have drawn from His doctrines, maxims,1703 affections, feelings, miracles, sufferings, and even resurrection----as foretold by the prophets.1704 Even to the last He taught us (the same truth of His mission), when He sent forth His apostles to preach His gospel "among all nations; "1705 for He thus fulfilled the psalm: "Their sound is gone out through all the earth, and their words to the end of the world."1706 Marcion, I pity you; your labour has been in vain. For the Jesus Christ who appears in your Gospel is mine.
Which is - when He sent forth His apostles to preach His gospel among all nations (siquidem et apostolos mittens ad praedicandum universis nationibus) this a reference to? Luke 24. 47 and Matt. 28. 19? I don't hear the ascension and you'd think he'd mention it given the context is clearly whether Jesus was a phantom or not?
“Finally, from so little sleeping and so much reading, his brain dried up and he went completely out of his mind.”
― Miguel de Cervantes Saavedra, Don Quixote