Moses
Numbers 15:13ESV·traditional attribution

Every native Israelite shall do these things in this way, in offering a food offering, with a pleasing aroma to the LORD.

Matthew Henry Presbyterian @wholebiblehenry

Here we have, I. Full instructions given concerning the meat-offerings and drink-offerings, which were appendages to all the sacrifices of animals. The beginning of this law is very encouraging: When you come into the land of your habitation which I give unto you, they you shall do so and so, Num 15:2.

Commenting on Numbers 15:1-21

John Gill Reformed Baptist @doctorgill

And if a stranger sojourn with you,.... A stranger, or proselyte, not of the gate, but of righteousness, as Ben Gersom and the Jewish, writers in general interpret it: or whatsoever be among you in your generations; whether such a proselyte settled and continued among them, or only stayed with them awhile: and will offer an offering made by fire of a sweet savour unto...

Jamieson-Fausset-Brown Reformed @jfbcommentary

a stranger--one who had become a proselyte. There were scarcely any of the national privileges of the Israelites, in which the Gentile stranger might not, on conforming to certain conditions, fully participate.