John Gill Commentary Numbers 34:29

"These are they whom Jehovah commanded to divide the inheritance unto the children of Israel in the land of Canaan." — Numbers 34:29 (ASV)

These are they whom the Lord commanded
Not only named and appointed them, but laid his commands upon them, and obliged them: to divide the inheritance to the children of Israel ;
even this order was made before the land was conquered by them, so sure and certain was it to them; and accordingly they did divide it, and that in Shiloh, before the Lord, at the door of the tabernacle of the congregation, as in the presence of God, doing it in the most impartial and solemn manner; see (Joshua 19:51) .