Moses
Numbers 7:88ESV·traditional attribution

and all the cattle for the sacrifice of peace offerings twenty-four bulls, the rams sixty, the male goats sixty, the male lambs a year old sixty. This was the dedication offering for the altar after it was anointed.

Matthew Henry Presbyterian @wholebiblehenry

We have here an account of the great solemnity of dedicating the altars, both that of burnt-offerings and that of incense; they had been sanctified before, when they were anointed (Lev 8:10, Lev 8:11), but now they were handselled, as it were, by the princes, with their free-will offerings.

Commenting on Numbers 7:10-89

Geneva Bible Notes Reformed @genevanotes

And all the oxen for the sacrifice of the peace offerings [were] twenty and four bullocks, the rams sixty, the he goats sixty, the lambs of the first year sixty. This [was] the dedication of the altar, after that it was anointed. (g) By Aaron.

Keil & Delitzsch Lutheran @keilanddelitzsch

Num 7:12-88 All the princes brought the same gifts. The order in which the twelve princes, whose names have already been given at Num 1:5-15, made their presentation, corresponded to the order of the tribes in the camp (ch. 2), the tribe-prince of Judah taking the lead, and the prince of Naphtali coming last.

Commenting on Numbers 7:12-88