When did Paul start preaching??? Minus the 3 years he spent in the presence of the 'risen' Jesus Christ...
Where does it say that Paul spent three years in the presence of the risen Christ? Come on, trot it out. I would interested in more of your wisdom. At any rate, Paul's first letters occured more than 20 years after Jesus Ascended. You said that Paul started writing immediately. So, I ask again, do you charge Paul with being a slow writer? More than 20 years? Even you write faster than that.
I'll give you a hint...You have to start reading the scriptures outside of the Gospels to find it...Yes, there are scriptures after the book of Luke...