“Then Moses made inquiry about the goat of the sin offering. It had already been burned! Moses was angry with Eleazar and Ithamar, Aaron’s remaining sons and said, ‘Why did you not eat the sin offering in the sacred area? It is most holy. God has given it to you that you may remove the guilt of the congregation, to make atonement on their behalf before Yahweh. Its blood was not brought into the inner part of the sanctuary. You should certainly have eaten it in the sanctuary, as I commanded.’ Aaron spoke to Moses. ‘See, today they offered their sin offering and their burnt offering before Yahweh. Yet such things as these have befallen me! If I had eaten the sin offering today, would it have been acceptable to Yahweh?’ When Moses heard that, he agreed.”
Moses was angry with Eleazar and Ithamar because they did not eat the sin offering of the goat in the sacred area. They did not bring the blood into the inner part of the sanctuary. Aaron responded that it was a bad day since so much had happened to him. They were afraid that it would not be agreeable to Yahweh. When Moses heard this, he agreed.