Leviticus 7:35-38

35The Lord gave this part of the Israelites' offerings to Aaron's sons. He gave it to them on the day when they became the Lord's priests.

36The Lord told the Israelites that they must do this. He told them that on the day that Aaron's sons became priests. All their sons and grandsons must always give these offerings to the priests.” ’

37These are all the rules that a person must use. They are for when he gives a gift to God. They are the rules for offerings of grain and the friendship offering. And they are rules for the offerings that people give to take away their sin. The rules tell them how to make Aaron's sons priests. And they tell people who have done bad things what to do. They must show God that they are sorry.

38Israel's people were in the Sinai desert. The Lord gave the rules to Moses on Sinai mountain. That was on the day that the Lord spoke to the people. He told them that they should bring their offerings to him there.