Moses
Numbers 4:23BSB·traditional attribution

from thirty to fifty years old, counting everyone who comes to serve in the work at the Tent of Meeting.

Matthew Henry Presbyterian @wholebiblehenry

We have here the charge of the other two families of the Levites, which, though not so honourable as the first, yet was necessary, and was to be done regularly. 1. The Gershonites were charged with all the drapery of the tabernacle, the curtains, and hangings, and the coverings of badgers' skins, Num 4:22-26.

Commenting on Numbers 4:21-33

John Gill Reformed Baptist @doctorgill

And the hangings of the court,.... Which made the great court that surrounded the tabernacle, Exo 27:9, and the hanging for the door of the gate of the court; the eastern gate that led into the court, an hanging of twenty cubits, Exo 27:16, which is by the tabernacle, and by the altar round about; that is, which hangings that formed the court, and were...

Geneva Bible Notes Reformed @genevanotes

From thirty years old and upward until fifty years old shalt thou number them; all that enter in to perform the service, to do the work in the tabernacle of the congregation. (n) Which were received into the company of those who ministered in the tabernacle of the congregation.