Moses
Numbers 8:13ESV·traditional attribution

And you shall set the Levites before Aaron and his sons, and shall offer them as a wave offering to the LORD.

Matthew Henry Presbyterian @wholebiblehenry

We read before of the separating of the Levites from among the children of Israel when they were numbered, and the numbering of them by themselves (Num 3:6, Num 3:15), that they might be employed in the service of the tabernacle. Now here we have directions given for their solemn ordination (Num 8:6), and the performance of it, Num 8:20.

Commenting on Numbers 8:5-26

John Gill Reformed Baptist @doctorgill

And thou shalt set the Levites before Aaron, and before his sons,.... After atonement was made for them, as Aben Ezra observes; then they were presented to Aaron and his sons, to whom they were given to he their ministers, and assistants to them: and offer them for an offering unto the Lord: or, and "waved them", &c.

Keil & Delitzsch Lutheran @keilanddelitzsch

Num 8:12-19 The Levites were then to close this transfer of themselves to the Lord with a sin-offering and burnt-offering, in which they laid their hands upon the sacrificial animals. By this imposition of hands they made the sacrificial animals their representatives, in which they presented their own bodies to the Lord as a living sacrifice well-pleasing to Him.

Commenting on Numbers 8:12-19