"While that man, who was called of God and appointed, that putteth forth his hand to steady the ark of God, shall fall by the shaft of death, like as a tree that is smitten by the vivid shaft of lightning." (D&C 85:8.)
The phrase "steady the ark" refers to an incident in ancient Israel when the Ark of the Covenant, being transported over a rough spot, started to topple. Uzzah, who sought to steady the ark, was struck dead.The Church Educational System' Doctrine and Covenants Student Manual states: "However well-meaning his intentions, Uzzah approached casually what could only be approached under the strictest conditions. He had no faith in God's power. He assumed that the ark was in danger, forgetting that it was the symbol of the God who has all power. What man can presume to save God and His kingdom through his own efforts?"
President David O. McKay wrote: "Let us look around us and see how quickly men who attempt unauthoritatively to steady the ark die spiritually.
"Their souls become embittered, their minds distorted, their judgments faulty, and their spirits depressed. Such is the pitiable condition of men who, neglecting their own responsibilities, spend their time in finding fault with others."