Moses
Leviticus 9:13ESV·traditional attribution

And they handed the burnt offering to him, piece by piece, and the head, and he burned them on the altar.

Matthew Henry Presbyterian

These being the first offerings that ever were offered by the levitical priesthood, according to the newly-enacted law of sacrifices, the manner of offering them is particularly related, that it might appear how exactly they agreed with the institution. 1.

Commenting on Leviticus 9:8-22

John Gill Reformed Baptist

And he did wash the inwards and the legs,.... As Moses also had done, Lev 8:21. and burnt them upon the burnt offering on the altar; upon the pieces, and the head, before mentioned, said to be burnt, or "after" the burnt offering, after they were burnt: the Septuagint version is as before.

Keil & Delitzsch Lutheran

Lev 9:12-14 The burnt-offering was presented according to the general rule (Lev 1:3-9), as in Lev 8:18-21. המציא (Lev 9:12): to cause to attain; here, and in Lev 9:18, to present, hand over. לנתחיה, according to its pieces, into which the burnt-offering was divided (Lev 1:6), and which they offered to Aaron one by one. No meat-offering was connected with Aaron’s burnt-offerings, partly because the law contained in Num 15:2.

Commenting on Leviticus 9:12-14