When the denominational religion fails to comfort. Just like an opiate addict goes doctor shopping, they go doctrine shopping. Once they find another denomination they must tell everyone about the amazing effects they have experianced, wow.
When a man has been set free by the truth he does by nature recognise truth and the messengers of truth. He cannot bare lies and liars. He avoids error as he would the plauge. To be holy is to be seperated and Yah Veh Elohim "leads such a man in the paths of justness for His names sake". To the praise of the glory of His grace.