Leviticus 9:22-24

Then Aaron lifted up his hands toward the people and blessed them. Then he stepped down from presenting the sin offering, the burnt offering and the fellowship offerings. Moses and Aaron then went into the Tent of Meeting. When they came back out and blessed the people, the glory of ADONAI appeared to all the people. Fire came out from the presence of ADONAI, and devoured the burnt offering and the fat on the altar. When all the people saw it, they shouted and fell on their faces.