Leviticus 9:3-6

³And to the children of Israel thou shalt say: Take ye a he goat for sin, and a calf, and a lamb, both of a year old, and without blemish for a holocaust,

⁴Also a bullock and a ram for peace offerings: and immolate them before the Lord, offering for the sacrifice of every one of them flour tempered with oil; for today the Lord will appear to you.

⁵They brought therefore all things that Moses had commanded before the door of the tabernacle: where when all the multitude stood,

⁶Moses said: This is the word, which the Lord hath commanded: do it, and his glory will appear to you.