A clean person, to wit, a priest; for to such the work of cleansing was appropriated. See Le 13 $. Upon all the vessels; even those which were in part purified by the fire. See Numbers 31:23.
Related Commentaries of Numbers 19:18
Numbers 19:18
18 And a clean person shall take hyssop, and dip it in the water, and sprinkle it upon the tent, and upon all the vessels, and upon the persons that were there, and upon him that touched a bone, or one slain, or one dead, or a grave: