Bible Verses About Aaron: Forbidden to mourn the death of his sons, Nadab and Abihu

Then Moses said to Aaron and his sons Eleazar and Ithamar, “Do not let your hair become disheveled and do not tear your garments, or else you will die, and the LORD will be angry with the whole congregation. But your brothers, the whole house of Israel, may mourn on account of the fire that the LORD has ignited.

But Aaron replied to Moses, “Behold, this very day they presented their sin offering and their burnt offering before the LORD. Since these things have happened to me, if I had eaten the sin offering today, would it have been acceptable in the sight of the LORD?”