Si quid retro gestum est nobis adversus Marcionem, iam hinc viderit. Novam rem aggredimur ex vetere. Primum opusculum quasi properatum pleniore postea compositione rescideram. Hanc quoque nondum exemplariis suffectam fraude tunc fratris, dehinc apostatati, amisi, qui forte descripserat quaedam mendosissime et exhibuit frequentiae. Emendationis necessitas facta est. Innovationis eius occasio aliquid adicere persuasit. Ita stilus iste nunc de secundo tertius et de tertio iam hinc primus hunc opusculi sui exitum necessario praefatur, ne quem varietas eius in disperso reperta confundat.Whatever in times past we have wrought in opposition to Marcion, is from the present moment no longer to be accounted of. It is a new work which we are undertaking in lieu of the old one. My original tract, as too hurriedly composed, I had subsequently superseded by a fuller treatise. This latter I lost, before it was completely published, by the fraud of a person who was then a brother, but became afterwards an apostate. He, as it happened, had transcribed a portion of it, full of mistakes, and then published it. The necessity thus arose for an amended work; and the occasion of the new edition induced me to make a considerable addition to the treatise. This present text, therefore, of my work--which is the third as superseding the second, but henceforward to be considered the first instead of the third--renders a preface necessary to this issue of the tract itself that no reader may be perplexed, if he should by chance fall in with the various forms of it which are scattered about.
"Because," says (Jesus), "He is kind unto the unthankful and to the evil." (Luke 6:35) Well done, Marcion! How cleverly have you withdrawn from Him the showers and the sunshine. (cf. Matt 5:45) [Tertullian Adv Marc 4:17]