Couchoud advances two intriguing explanations:
The first explanation is: the knowledge of Jesus has to be recent. As such, he had to be a fully historical person. What is known recently is by definition a fact happened in the full light of the sun, in a precise point of the earth.
Marcion therefore needed to show that the apparition of Jesus was recent, and had nothing to do with what had been predicted or revealed in the old scriptures of the Jews, but was a new thing. The manifestation of Jesus was a terrestrial fact; therefore the crucifixion must also be a terrestrial event.
(Creation of Christ, p. 133)
The second explanation is: the name of Pilate was introduced the first time, in connection with Christus/Chrestus, by Tacitus.
Annales, xv. 44. Tacitus imagined some sort of seditious superstition which was put down under Tiberius and reappeared under Nero.
...
Marcion accepted enthusiastically this popular, pagan idea of Christ’s death; its simplicity appealed to him...
...
Marcion accepted enthusiastically this popular, pagan idea of Christ’s death; its simplicity appealed to him...
(ib., p. 134, my bold)
So the steps are the following:
1) Marcion preached in a first moment that the Crucifixion of Jesus was recent, hence it happened on the earth, under the eyes of all.
2) the Christian voices about this recent and terrestrial cruxifixion of Christ reached the Roman authorities in Asia, in particular Tacitus.
3) in 117 CE, Pilate gave as explanation for this “crucified Christ” the simplicistic and quasi-defamatory explanation that Christ was a seditious messianist killed by Pilate (because in the eyes of Tacitus it seemed that the Origins of the Cult dated back to the time of Pilate).
4) the connection Pilate/Crucified Christ became popular and reached Marcion, who inserted the name of Pilate in the his story, completed after the 117.
The corollary is that if Tacitus had mentioned, for example, Albinus and not Pilate, then we would have had Albinus as Roman judge of the Gospel Jesus, in the place of Pilate.
Now, the point is that in the Pauline epistles the Crucifixion of Jesus was already considered a recent fact, pace G. A. Wells. Why didn't Paul do, differently from Marcion, the implication “recent fact ----> terrestrial fact”, but he preached only a celestial crucifixion of Jesus (despite of the his being recent)?
I think that the reason is more simple than we may imagine.
According to Marcion, what was recent was the knowledge of low level of Jesus. It was necessary the entry of Paul to have a knowledge of high level of the same Jesus.
MARCION | PAUL |
The Son of an Unknown God (so jealous about his anonymity until to that moment!) had started only recently, under Pilate, to be known by all the creatures of the demiurge, in public revelations (even if SOLUS PAULUS realized soundly his truest identity). | The Son of YHWH (so jealous about the anonymity of the his Son until to that moment!) had started only recently, with Peter, James and Paul himself, to be known by the only apostles of the Christ, in private revelations. |
MY IMAGINATION IS WITHOUT LIMITS:
Hence I may imagine (me and not Couchoud is talking here): is there some pun of words between Pilatus and Paulus ?
Note the deliberate contrast: Pilatus was the first human being who testified the Son (in the eyes of the Pagan world, see Tacitus) according to the flesh. While Paul was the the first human being who testified the Son (in the eyes of the Pagan world, read Gal 2) according to the his truest spiritual essence.
Both the names start with “P” and have both a “L” and a “S”.