Prov 18:13 He that answereth a matter before he heareth it, it is folly and shame unto him.

I work in the Nuclear Power Industry. Occasionally some "fool" who has never even seen the inside of a reactor opens his mouth and explains to us his authoritative and expert knowledge of everything from radioactive isotopes to hydrogen recombiners.
What we know that he doesn't know is that he doesn't know diddly squat, yet he has deluded and deceived himself into believing he is an authority.
So how to we handle it in a Nuclear Plant? We let the poor fool wonder through the plant in his own ignorance. He's a legend in his own mind. As long as he doesn't push any buttons or turn valves, he's harmeless.
Conversely, the churches are infested with the same type of fool. They are a menace as soon as they open thier mouths, because by thier folly they lead people astray.
But like the fool in the Nuke, they are too foolish to understand how foolish they look to the wise.
Romans 1:22 Professing themselves to be wise, they became fools,
Proverbs 26:5 Answer a fool according to his folly, lest he be wise in his own conceit.
Proverbs 21:16 ¶The man that wandereth out of the way of understanding shall remain in the congregation of the dead.
Proverbs 15:28 ¶The heart of the righteous studieth to answer: but the mouth of the wicked poureth out evil things.