Leviticus 9:3-5

3Then speak to the Israelites and say, ‘Take a male goat for a sin offering, a calf and a lamb—both a year old and without blemish—for a burnt offering, 4an ox1 and a ram for a peace offering to sacrifice before the LORD, and a grain offering mixed with oil. For today the LORD will appear to you.’”

5So they took what Moses had commanded to the front of the Tent of Meeting, and the whole congregation drew near and stood before the LORD.