Church doctrine goes through what the Lord revealed to the Apostle Paul after his conversion. The Church was not yet born during the Lord's earthly ministry. The death of the testator set the New Testament in motion.
dude look !!!
matthew 28:19-20 "…19Therefore go and make disciples of all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Spirit, 20and teaching them to obey all that I have commanded you. And surely I am with you always, to the very end of the age.”
this is AFTER THE CROSS, Jesus commanding His followers to go to ALL NATIONS AND TEACH THEM TO OBEY EVERYTHING I HAVE COMMANDED YOU."
its Jesus man after the resurrection, his final instruction before he went back to the father. you suppose now all the sudden paul changed all that? you would definitely have to show some scripture authorizing pauls authority to undo Jesus words before that's gonna float.
this great commission ensures that any doctrine has to be centered on Jesus and His commands or teachings. its the foundation of eb=verything after the cross, thou it didn't change when he was on earth going to the cross, but for your sake, cant you see that this commission shows a good doctrine approved by Jesus not just to a group but to the entire world or all nations? if any octrine omits what Jesus taught it is absolutely false in every way. its just doctrine telling you that paul has some authority over Jesus. its Just the gog making you have to reason how what Jesus said doesn't apply, because it doesn't fit with unwarranted salvation your following a doctrine, Not the gospel