How is it, again, that he tells us that "a piece of new cloth is not sewed on to an old garment," or that "new wine is not trusted to old bottles," when he is himself patched and clad in an old suit of names? How is it he has rent off the gospel from the law, when he is wholly invested with the law,-in the name, forsooth, of Christ? What hindered his calling himself by some other name, seeing that he preached another (gospel), came from another source, and refused to take on him a real body, for the very purpose that he might not be supposed to be the Creator's Christ? Vain, however, was his unwillingness to seem to be He whose name he was willing to assume; since, even if he had been truly corporeal, he would more certainly escape being taken for the Christ of the Creator, if he had not taken on him His name.
Source: Against Marcion Book III