Numbers 19:19
And the clean person shall sprinkle upon the unclean on the third day, and on the seventh day: and on the seventh day he shall purify himself, and wash his clothes, and bathe himself in water, and shall be clean at even.
And the clean person shall sprinkle upon the unclean,.... The clean priest shall sprinkle upon the unclean man, as the Targum of Jonathan; that is, he shall sprinkle the water of purification upon him that is unclean in any of the above ways:
on the third day, and on the seventh day; See Gill on "Numbers 19:12",
and on the seventh day he shall purify himself; either the unclean person, who shall perfect his purification, as Jarchi interprets it, that is, by doing what follows; or else the clean person, who becomes in some measure unclean, by sprinkling and touching the water of separation, as appears from Numbers 19:21 as the priest that sprinkled the blood of the heifer, and the man that burnt it and gathered its ashes,
and wash his clothes, and bathe himself in water, and shall be clean at even; in like manner as the man that let go the goat into the wilderness, Leviticus 16:26.