Moses
Numbers 1:2ESV·traditional attribution

“Take a census of all the congregation of the people of Israel, by clans, by fathers’ houses, according to the number of names, every male, head by head.

Matthew Henry Presbyterian @wholebiblehenry

I. We have here a commission issued out for the numbering of the people of Israel; and David, long after, paid dearly for doing it without a commission. Here is, 1. The date of this commission, Num 1:1. (1.) The place: it is given at God's court in the wilderness of Sinai, from his royal palace, the tabernacle of the congregation.

Commenting on Numbers 1:1-16

John Gill Reformed Baptist @doctorgill

Take ye the sum of all the congregation of the children of Israel,.... Excepting the Levites; nor were any account taken of the mixed multitude that came out of Egypt with the children of Israel, only of them; and this account was taken, partly to observe the fulfilment of the divine promise to Abraham concerning the multiplication of his seed, and partly that it might...