...go to the Source? We are instructed to pray for wisdom (James 1:5 and others). If Wisdom comes to us from the Source then we need not worry.
An "outsider" will complain that this is not helpful because s/he can not tell who is telling the truth. However, it does not matter because this is a personal journey. The person who knows the Truth also knows how he Knows. The person who does not know knows he does not.
I never simply believe what a "preacher" says. I ponder what s/he says and pray about it. When I get an answer then I know the Truth.
It does not matter which person says they are right. Of course we all say we are right - who would be dumb enough to defend a position we new was false, unless we had an agenda? In fact, an outsider can not tell one from another (wolf in sheep's clothing or the real sheep so to speak).
It is, however, completely logical to report that the Creator can and does tell the Truth to those who are interested. No one can argue with the statement that an answer from the Expert is the best answer. The good news is that you do not have to believe me or anyone else. You can know for yourself.