You know how some Bible blenders who are anti Right Division try and say that Paul and the 12 preached the same gospel and they quote Galatians 1:23 as proof?
“But they had heard only, That he which persecuted us in times past now preacheth the faith which once he destroyed.”
The faith in the abovementioned verse the Apostle Paul is speaking about is faith in Christ.
Galatians 1:23 doesn’t contradict Galatians 2:7-9 where the Apostle Paul refers to two gospels, namely, the Gospel of the circumcision and the Gospel of the uncircumcision.
The Apostle Paul did persecute the people of The Way – the Little Flock before he was saved in Acts 9.
We are the brothers and sisters of the 12 Apostles because we both have faith in Christ, but on different terms – them by faith + works in the Messiah, and us (the body of Christ) through faith in Christ’s death for our sins, His burial and resurrection on the 3rd day.
It’s not rocket science.