Leviticus 9:22-24

Then Aaron lifted his hands toward the people and blessed them. When he had finished offering the sin offering, the burnt offering, and the fellowship offering, he stepped down from the altar. Moses and Aaron went into the Meeting Tent. Then they came out and blessed the people, and the LORD’s glory came to all the people. Fire came out from the LORD and burned up the burnt offering and fat on the altar. When the people saw this, they shouted with joy and bowed facedown on the ground.