[editor-surveyor]

>> “ Luke was not an Apostle” <<

Luke was Peter’s scribe. Peter was at that time not a literate man, and what Luke did was to place Peter’s words in writing to preserve them, thus it is really the Gospel according to Peter.

[Tramonto]

Wasn’t Mark Peter’s scribe?

[verga]

Luke was Peter’s scribe. Peter was at that time not a literate man, and what Luke did was to place Peter’s words in writing to preserve them, thus it is really the Gospel according to Peter.

I believe you have it backwards. Luke accompanied Paul, who was very educated. John/Mark was the one that accompanied Peter. But there is also a separate Gospel of Peter, which is non-canonical, just like quite a few other writings.