I'm just gonna leave this here (emphasis mine).
Still, when exposed to unscriptural teachings, regardless of the source, we must decisively reject them. - w14 7/15 p14 par. 10
I tell you that men will render an account on Judgment Day for every unprofitable saying that they speak; for by your words you will be declared righteous, and by your words you will be condemned. - Matt 12:36,37