Moses
Numbers 5:3ESV·traditional attribution

You shall put out both male and female, putting them outside the camp, that they may not defile their camp, in the midst of which I dwell.”

Matthew Henry Presbyterian @wholebiblehenry

Here is, I. A command for the purifying of the camp, by turning out from within its lines all those that were ceremonially unclean, by issues, leprosies, or the touch of dead bodies, until they were cleansed according to the law, Num 5:2, Num 5:3. 1. These orders are executed immediately, Num 5:4.

Commenting on Numbers 5:1-10

John Gill Reformed Baptist @doctorgill

Both male and female shall ye put out,.... Whether leprous, or profluvious, or defiled by touching a dead carcass: by this law, Miriam, when leprous, was put out of the camp, Num 12:14, without the camp shall ye put them; which is repeated that it might be taken notice of, and punctually observed: that they defile not their camps; of which there were four, the...

Geneva Bible Notes Reformed @genevanotes

Both male and female shall ye put out, without the camp shall ye put them; that they defile not their camps, in the midst whereof I dwell. (a) There were three types of tents: of the Lord, of the Levites, and of the Israelites.