Numbers 15:24-25

24Perhaps somebody does not know that they are not obeying one of my rules. When that happens, they must sacrifice a young bull as a burnt offering. The smell of the smoke from this sacrifice will please the Lord. Also, they must give a grain offering, a drink offering and a male goat as a sin offering.

25Then the priest will make things right with God for all the Israelites. The Lord will forgive them. That is because their sin was a mistake. They have brought their offering, an offering by fire to the Lord. And they have brought their sin offering to the Lord, for their mistake.