Numbers 25:5 (BSB)

So Moses told the judges of Israel, “Each of you must kill all of his men who have joined in worshiping Baal of Peor.”

From Numbers 25. Also in the ESV.

Commentary on Numbers 25:5

• Matthew Henry (Presbyterian), Matthew Henry's Complete Commentary on Numbers 25:1-5: Here is, I. The sin of Israel, to which they were enticed by the daughters of Moab and Midian; they were guilty both of corporal and spiritual whoredoms, for Israel joined himself unto Baal-peor, Num 25:3. Not all, nor the most, but very many, were taken in this snare. Now concerning this observe, 1.
• John Gill (Reformed Baptist), Exposition of the Old and New Testaments on Numbers 25:5: And Moses said unto the judges of Israel,.... Either the same with the heads of the people, or the rulers of thousands, hundreds, fifties, and tens, according to the distribution by the advice of Jethro: slay ye everyone his men, that were joined unto Baalpeor; all that were under their several districts and jurisdictions, that were found guilty of that crime; these they are ordered...
• Jamieson-Fausset-Brown (Reformed), Commentary Critical and Explanatory on the Whole Bible on Numbers 25:5: judges of Israel--the seventy elders, who were commanded not only to superintend the execution within their respective jurisdictions, but to inflict the punishment with their own hands. (See on Sa1 15:33).
• Geneva Bible Notes (Reformed), Geneva Bible Study Notes on Numbers 25:5: And Moses said unto the judges of Israel, Slay ye every one his men that were joined unto Baalpeor. (d) Let him execute those that are under his charge.