ὅπως τε παρέδωκαν αὐτὸν οἱ ἀρχιερεῖς καὶ οἱ ἄρχοντες ἡμῶν εἰς κρίμα θανάτου καὶ ἐσταύρωσαν αὐτόν
1 Cor 2:8:
ἣν οὐδεὶς τῶν ἀρχόντων τοῦ αἰῶνος τούτου ἔγνωκεν· εἰ γὰρ ἔγνωσαν, οὐκ ἂν τὸν Κύριον τῆς δόξης ἐσταύρωσαν·
"Luke" (author) would have known surely that the "archons" mentioned by Paul were demons, but even so he writes, without problems: "high priests and archons", meaning human archons, i.e. the Romans of Pilate.
This is not a mere coincidence. This is a deliberate transposition of the (meaning of) "archons" from heaven to earth.
It is impossible that this transposition was made in a late time: what interest could "Luke" have to mention directly the human "Archons" as responsibles of the death of Jesus on an equal level with the hated sinedrites, without no a clue of pro-roman apology in this case.
Hence I found the my case on this passage: Pilate appeared in the Earliest Gospel.