Moses
Leviticus 4:3BSB·traditional attribution

If the anointed priest sins, bringing guilt on the people, he must bring to the LORD a young bull without blemish as a sin offering for the sin he has committed.

John Calvin Reformed @genevareformer

3. If the priest that is anointed. He now distinguishes between different persons, and begins with the high priest, who alone bore the high distinction of the holy unction, unless it be thought better to apply it to the whole supreme class. “Sur toute la maison d’Aaron.” — Fr. It is probable, however, that it only refers to one.

Matthew Henry Presbyterian @wholebiblehenry

The laws contained in the first three chapters seem to have been delivered to Moses at one time. Here begin the statutes of another session, another day. From the throne of glory between the cherubim God delivered these orders. And he enters now upon a subject more strictly new than those before.

Commenting on Leviticus 4:1-12

John Gill Reformed Baptist @doctorgill

And he shall bring the bullock unto the door of the tabernacle of the congregation before the Lord,.... As the bullock of the burnt offering; See Gill on Lev 1:3, and shall lay his hand on the bullock's head; the Targum of Jonathan says his right hand; See Gill on Lev 1:4, and kill the bullock before the Lord; at the door of the tabernacle...