[Ali Imran]

Paul and James believed in and taught the same gospel. They served the same God. And we can wholeheartedly study both James and the books of Paul, as well as the rest of the Old and New Testament, with great confidence that this is one harmonious, glorious message supremely authored by none other than God Himself.

I know you c/p that from some site. It's not your own words.

What you should do is think about it. Paul and James DID NOT preach the same gospel. Paul said so himself in Galatians 2, that his gospel is different from the disciples. So the 3 sentences you copied from some site are not telling you the truth.