Our livestock must also go with us. We have to use some of them to worship the Lord our God. We can’t leave even one animal behind. Until we get there, we won’t know what we are supposed to use to worship the Lord.”
God said, “I will be with you. I will give you a sign. It will prove that I have sent you. When you have brought the people out of Egypt, all of you will worship me on this mountain.”
“The elders of Israel will listen to you. Then you and the elders must go to the king of Egypt. You must say to him, ‘The Lord has met with us. He is the God of the Hebrews. Let us take a journey that lasts about three days. We want to go into the desert to offer sacrifices to the Lord our God.’
Later on, Moses and Aaron went to Pharaoh. They said, “The Lord is the God of Israel. He says, ‘Let my people go. Then they will be able to hold a feast to honor me in the desert.’ ”
Then Moses and Aaron said, “The God of the Hebrews has met with us. Now let us take a journey that lasts about three days. We want to go into the desert to offer sacrifices to the Lord our God. If we don’t, he might strike us with plagues. Or he might let us be killed by swords.”
Nadab and Abihu were two of Aaron’s sons. They got their shallow cups for burning incense. They put fire in them. They added incense to it. They made an offering to the Lord by using fire that wasn’t allowed. They did it against his command.