Here is the way it works: A pastor spends years of his/her life in study. They attend Bible College, Seminary and attend teaching conferences, etc. The information they garner is then passed on to those they teach, especially in the the local church they minister in. The people being taught embrace the teaching as truth and apply it to their lives. This is not totally a bad thing! However, if what the pastor learned was incorrect, that incorrect teaching is perpetuated, it seems like forever. The people whose lives were effected by that bad, incorrect teaching live by it and also pass it on to others. When, by chance, that embraced teaching is challenged, the person rejects the challenge, sometimes vehemently!
A common saying that many hold to is, "Practice makes perfect!" It's been said that the late, great football coach of the Green Bay Packers, Vince Lombardi would teach his champion team the following, "Perfect practice makes perfect!" Lombardi would insist that practicing the wrong thing leads to anything but perfect. Only correct, perfect practice could empower his team to many Super Bowl wins.
The same holds true to Christians. Paul implied that living the victorious life of a Believer in Jesus Christ could only come about if a Believer would embrace the proper teaching of the true Gospel of Jesus Christ, not just something that has been wrongly taught to the Church, no matter who it was that brought the teaching!
Early in my walk of exposure into New Covenant Grace, I sensed very strongly that I was to fully teach the Gospel that Paul taught. I've tried to faithfully hold to that position. As a result I'm witnessing great transformation taking place in the lives of the people of our church. Folks....Paul had it right! According to Galatians chapter 1 Paul received his "doctrine" as direct revelation from Christ himself. Yet, I find that a lot of the current "doctrine" of the Church is far from the simple Gospel that Christ taught Paul!
My suggestion is for Believers, no matter how long they have been a Believer, keep your hearts and minds open to change. Mostly only good can come from this! Glory!
Grace and peace!