Moses
Leviticus 7:38BSB·traditional attribution

which the LORD gave Moses on Mount Sinai on the day He commanded the Israelites to present their offerings to the LORD in the Wilderness of Sinai.

Matthew Henry Presbyterian @wholebiblehenry

Here is the conclusion of these laws concerning the sacrifices, though some of them are afterwards repeated and explained. The are to be considered, 1. As a grant to the priests, Lev 7:35, Lev 7:36. In the day they were ordained to that work and office this provision was made for their comfortable maintenance.

Commenting on Leviticus 7:35-38

Adam Clarke Methodist @methodicalclarke

In the wilderness of Sinai - These laws were probably given to Moses while he was on the mount with God; the time was quite sufficient, as he was there with God not less than fourscore days in all; forty days at the giving, and forty days at the renewing of the law.

Keil & Delitzsch Lutheran @keilanddelitzsch

Lev 7:37-38 With Lev 7:37 and Lev 7:38 the whole of the sacrificial law (ch. 1-7) is brought to a close. Among the sacrifices appointed, the fill-offering (המּלּוּאים) is also mentioned here; though it is not first instituted in these chapters, but in Exo 29:19-20 (Exo 29:22, Exo 29:26, Exo 29:27, Exo 29:31).

Commenting on Leviticus 7:37-38