Leviticus 9:2

And it came to pass on the eighth day, that Moses called Aaron and his sons, and the elders of Israel;

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;

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.

And they brought that which Moses commanded before the tabernacle of the congregation: and all the congregation drew near and stood before the LORD.