Mark 7:7 tells us:  “They worship Me in vain [their worship is meaningless and worthless, a pretense], Teaching the precepts of men as doctrines [giving their traditions equal weight with the Scriptures].” You’d think it would be quite obvious, you think? When church leaders announce that they speak directly from God, they instantly become a bonafide false prophet if their words are later shown to be wrong. False prediction = False Prophet. Easy.