Moses
Leviticus 17:3ESV·traditional attribution

If any one of the house of Israel kills an ox or a lamb or a goat in the camp, or kills it outside the camp,

Matthew Henry Presbyterian @wholebiblehenry

This statute obliged all the people of Israel to bring all their sacrifices to God's altar, to be offered there. And as to this matter we must consider, I. How it stood before. 1. It was allowed to all people to build altars, and offer sacrifices to God, where they pleased.

Commenting on Leviticus 17:1-9

John Gill Reformed Baptist @doctorgill

What man soever there be of the house of Israel,.... Whether high or low, rich or poor: that killeth an ox, or lamb, or goat in the camp; which are particularly mentioned, as Gersom observes, because of these the offerings were; for the law respects the killing of them not for common food, but for sacrifice, as appears from the following verses; for this law...

Geneva Bible Notes Reformed @genevanotes

What man soever [there be] of the house of Israel, that killeth an ox, or lamb, or goat, in the camp, or that killeth [it] out of the camp, (b) To make a sacrifice of offering of it.