Be attentive, my child, that you not judge any soul. For God permits the one who judges his neighbor to fall, so that he learns to have sympathy for his weak brother. The mercy of God supports all of us, but if we become proud, God will remove His grace and we shall become worse than the others.
It is one thing to condemn someone and another to be fought by thoughts of condemnation. To condemn is a terrible passion, but to be fought by such thoughts and to fight back—this is an occasion for crowns.
Elder Ephraim of Arizona