Fire consumes Nadab and Abihu
God was very specific in how offering was to be presented.
Two of Aaron's sons disobeyed the Lord's instructions on how the offering was to be performed and presented. As they were burning incense in a way that was unpleasing to God suddenly the Lord sent fiery flames and consumed them.
Moses told Aaron that this was what God meant when he said:
Moses then instructed the family not to show their sorrow and to mourn as God would be angry. Moses provided them with clarification again of how to perform and present offering that it might by pleasing in God's sight. They were then obedient.I demand respect from my priests, and I will be praised by everyone!