Strong evidence

I copied the following at some point without preserving from where (unless I wrote it, but I don't think I did). Nevertheless, I like at and am sharing it here. If anyone knows the source, I be glad to gives credit. Thanks.

"One of the strongest evidences in the New Testament of the congregation being the final authority is Paul’s words to the congregation in Galatians 1:6-8. It is the congregation that has the responsibility of being the last stop to prevent false doctrine from infiltrating the church. Paul gives the congregation final authority for protecting the purity of doctrine, even over an apostle gone rogue."