Moses
Numbers 19:5ESV·traditional attribution

And the heifer shall be burned in his sight. Its skin, its flesh, and its blood, with its dung, shall be burned.

Matthew Henry Presbyterian @wholebiblehenry

We have here the divine appointment concerning the solemn burning of a red heifer to ashes, and the preserving of the ashes, that of them might be made, not a beautifying, but a purifying, water, for that was the utmost the law reached to; it offered not to adorn as the gospel does, but to cleanse only.

Commenting on Numbers 19:1-10

John Gill Reformed Baptist @doctorgill

And one shall burn the heifer in his sight,.... Another priest, as the Targum of Jonathan, Eleazar looking on, as that expresses it; the Jews say (g), that when the priest came to the mount of Olives, accompanied by the elders of Israel, before he burnt the cow, he dipped himself in a dipping place there; and the wood being laid there in order, wood...

Keil & Delitzsch Lutheran @keilanddelitzsch

Num 19:2-10 Preparation of the Purifying Water. - As water is the ordinary means by which all kinds of uncleanness are removed, it was also to be employed in the removal of the uncleanness of death. But as this uncleanness was the strongest of all religious defilements, fresh water alone was not sufficient to remove it; and consequently a certain kind of sprinkling-water was appointed...

Commenting on Numbers 19:2-10