Leviticus 9:1-4

1 AND it came to pass on the eighth day, that Moses called Aaron and his sons, and the elders of Israel; 2 And he said unto Aaron, Take thee a young calf for a sin offering, and a ram for a burnt offering, without blemish, and offer them before the Lord. 3 And unto the children of Israel thou shalt speak, saying, Take ye a kid of the goats for a sin offering; and a calf and a lamb, both of the first year, without blemish, for a burnt offering; 4 Also a bullock and a ram for peace offerings, to sacrifice before the Lord; and a meat offering mingled with oil: for to day the Lord will appear unto you.