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

Moses said to Aaron, and to Eleazar and to Ithamar, his sons, “Don’t let the hair of your heads go loose, neither tear your clothes; that you don’t die, and that he not be angry with all the congregation; but let your brothers, the whole house of Israel, bewail the burning which the LORD has kindled.

Aaron spoke to Moses, “Behold, this day they have offered their sin offering and their burnt offering before the LORD; and such things as these have happened to me. If I had eaten the sin offering today, would it have been pleasing in the sight of the LORD?”