Moses
Leviticus 8:18ESV·traditional attribution

Then he presented the ram of the burnt offering, and Aaron and his sons laid their hands on the head of the ram.

Matthew Henry Presbyterian @wholebiblehenry

The covenant of priesthood must be made by sacrifice, as well as other covenants, Psa 50:5. And thus Christ was consecrated by the sacrifice of himself, once for all. Sacrifices of each kind must be offered for the priests, that they might with the more tenderness and concern offer the gifts and sacrifices of the people, with compassion on the ignorant, and on those that...

Commenting on Leviticus 8:14-30

John Gill Reformed Baptist @doctorgill

And he brought the ram for the burnt offering,.... One of the two he was ordered to take, Lev 8:2. and Aaron and his sons laid their hands on the head of the ram; as they had done before on the head of the bullock, see Lev 8:14 their right hands, as the Targum of Jonathan, and that at the same time; not first Aaron...

Jamieson-Fausset-Brown Reformed @jfbcommentary

brought the ram, &c.--as a token of their entire dedication to the service of God.