You have been, are, or likely will be in the position of looking for a church. Consider this as you weigh preachers. Does he lay it out for you, in a manner befitting an honest man openly serving God by serving the priesthood?
Or does he base major points on mysteries, deep knowledge, revelations, visions, special in-depth studies, things you have no possible way of seeing nor verifying?
If the latter, my advice would be to head out the door, and never turn back.