Numbers 6:23

And Moses saw all the work, and behold, they had done it; just as Yahweh had commanded, so they had done. Then Moses blessed them.

Then Aaron lifted up his hands toward the people and blessed them, and he stepped down after offering the sin offering and the burnt offering and the peace offerings.

And he stood and blessed all the assembly of Israel with a loud voice, saying:

Then the Levitical priests arose and blessed the people; and their voice was heard and their prayer came to His holy habitation, to heaven.