What the Bible says about You "take too much authority on yourself"
(From Forerunner Commentary)
Moses replied in a very interesting way. These two hundred and fifty men march up to Moses' tent, knock on the flap, and say, "You take too much authority on yourself. It should be shared among us two hundred and fifty." Moses replies, "You'd better watch out, because tomorrow morning God will show which one is holy, which one He has chosen to lead this people." Then in the following verses he gives them instruction.
Richard T. Ritenbaugh
Countering Presumptuousness