Moses
Numbers 19:12BSB·traditional attribution

He must purify himself with the water on the third day and on the seventh day; then he will be clean. But if he does not purify himself on the third and seventh days, he will not be clean.

Matthew Henry Presbyterian @wholebiblehenry

Directions are here given concerning the use and application of the ashes which were prepared for purification. they were laid up to be laid out; and therefore, though now one place would serve to keep them in, while all Israel lay so closely encamped, yet it is probable that afterwards, when they came to Canaan, some of these ashes were kept in every town, for...

Commenting on Numbers 19:11-22

John Gill Reformed Baptist @doctorgill

He shall purify himself with it,.... That is, with the ashes of the water of purification made of them: and this was to be done first on the third day; from the time of his touching the dead body. Aben Ezra intimates, that there is a secret or mystery in this and the following number seven; it may respect the third day of Christ's resurrection...

Jamieson-Fausset-Brown Reformed @jfbcommentary

He shall purify himself . . . the third day--The necessity of applying the water on the third day is inexplicable on any natural or moral ground; and, therefore, the regulation has been generally supposed to have had a typical reference to the resurrection, on that day, of Christ, by whom His people are sanctified; while the process of ceremonial purification being extended over seven...