Do you know what the gospel is?
Are you going to tell me? :^)
My understanding of the Gospels: They are fundamental Truth direct testimony from persons who were intimately associated with Jesus personally, in His walk as a human being in this world.
That is to say, these men Matthew, Luke, Mark, and especially John the beloved apostle testify and witness to the Logos of God, the ultimate criterion of all that exists in God's Creation. Compared to which St. Paul was a secondary source though an eminently brilliant and completely faithful one, praise ever be to his name!
(Paul was not a direct witness of anything, except his own de-horsing on the Road to Damascus, with all subsequent complications....)
Do you see the problem differently?