Isaiah says young men will be leaders in the day that a man takes his brother and makes him a leader. This is what happened when Moses made Aaron High Priest and Aaron's sons priests. Note also that the man made a leader has clothing, ie, the garb of the High Priest.
1For look, Yahvah, sovereign of hosts, takes away from Jerusalem and from Judah the stay and the staff, the whole stay of bread, and the whole stay of water,
2the mighty man and the man of war, the judge and the prophet and the diviner and the elder,
3the captain of 50 and the honorable man and the counsellor and the skilful carpenter and the expert counsellor.
4I will appoint young men to be their princes, and mockers will rule over them.
5The people will oppress each other, each his neighbor; the young men will provoke the elders, and the base men the honorable,
6when a man will take hold of his brother in the house of his father, and say to him, You have clothing, be our ruler, and govern this ruin.
7In that day he will answer, and say, I will not be a leader; for in my house is neither bread nor clothing; do not make me a ruler over the people.
5And Moses said to the congregation, This is the commandment which Yahvah has commanded to be done.
6And Moses brought Aaron and his sons, and washed them with water;
7and put on him the coat and girded him with the belt and clothed him with the robe and bound the loin cloth on his loins and put the ephod on him and girded him with the embroidered belt of the ephod.
8And he put the breastplate on him; and he put on the breastplate the urim and the thummim.
9And he put the mitre on his head; and on the mitre on his forefront, he put the golden plate, the holy crown; as Yahvah commanded Moses.
Isaiah talks about provoking Yahvah in the glory of his majesty. This matches Nadab and Abihu offering strange incense in the presence of Yahvah.
8For Jerusalem has stumbled, and Judah has fallen; because their tongue and their actions are against Yahvah, provoking god in the majesty of his glory.
9Their hypocrisy witnesses against them; and they declare their sins like Sodom, they do not hide them. Woe to their soul, for they have worked evil to themselves.
1And Nadab and Abihu, the sons of Aaron, each took his censer and put fire in it and laid incense on it and offered strange fire before Yahvah, not at its appointed time, and not as he had commanded them.
2And fire went out from before Yahvah and devoured them, and they died before Yahvah.
Isaiah says to tell the righteous that it will be well with them and they will eat the fruits of their labor. This matches Moses telling the priests to eat their share of the offerings.
10Say to the righteous that it will be well with them; for they will eat the fruit of their actions.
11Woe to the wicked. It will be ill with him, for the reward of his hands will be given him.
12And Moses spoke to Aaron, and to Eleazar and to Ithamar, his sons that were left, Take the meal offering that remains of the offerings of Yahvah made by fire, and eat it without leaven beside the altar; for it is most holy:
13and you will eat it in the holy place because it is your due and your sons' due from the offerings of Yahvah made by fire; for so I was commanded.
14And the wave breast and shoulder offering you will eat in a clean place; you and your sons and your daughters with you; for they are your due and your sons' due which are given out of the sacrifices of peace offerings of the sons of Israel.
15The shoulder offering and the wave breast they will bring with the offerings of the fat, made by fire, to wave it as a wave offering before Yahvah; and it will be yours and your sons with you by a statute forever; as Yahvah has commanded, that Aaron and his sons will eat it.