Leviticus 9:22-23

22Then Aaron lifted his hands toward the people and blessed them, and came down [from the altar of burnt offering] after presenting the sin offering, the burnt offering, and the peace offerings.

23Moses and Aaron went into the Tent of Meeting, and when they came out they blessed the people, and the glory and brilliance of the Lord [the Shekinah cloud] appeared to all the people [as promised].