Moses
Numbers 1:26BSB·traditional attribution

From the sons of Judah, according to the records of their clans and families, counting the names of all those twenty years of age or older who could serve in the army,

Matthew Henry Presbyterian @wholebiblehenry

We have here the speedy execution of the orders given for the numbering of the people. It was begun the same day that the orders were given, The first day of the second month; compare Num 1:18 with Num 1:1. Note, When any work is to be done for God it is good to set about it quickly, while the sense of duty is strong and pressing.

Commenting on Numbers 1:17-43

John Gill Reformed Baptist @doctorgill

Of the children of Judah, by their generations,.... See Gill on Num 1:20. . Numbers 1:27 num 1:27 num 1:27 num 1:27Those that were numbered of them, even of the tribe of Judah, were threescore and fourteen thousand and six hundred. 74,600 men. See Gill on Num 1:20.

Keil & Delitzsch Lutheran @keilanddelitzsch

Num 1:17-47 This command was carried out by Moses and Aaron. They took for this purpose the twelve heads of tribes who are pointed out (see at Lev 24:11) by name, and had the whole congregation gathered together by them and enrolled in genealogical tables. התילּד, to announce themselves as born, i.e., to have themselves entered in genealogical registers (books of generations).

Commenting on Numbers 1:17-47