NOTES for Num 19:1-22
In the statutes about ritual purity and the cleansing of the unclean, what matters for us is that only a clean person, one who had not defiled himself by contact with uncleanness, could perform the cleansing, and only by means of a burned, unblemished sacrifice whose blood had been sprinkled on the tent of meeting. The apostle says that these ritual laws were only prototypes of our cleansing from sin (Heb 9:23). And only the One who Himself has neither sin nor blemish can accomplish this cleansing, becoming the perfect sacrifice that sanctifies all who believe in Him.