Numbers 19:18-22 Catholic Public Domain Version (CPDV)

18. And into it a man who is clean shall dip hyssop, and he shall sprinkle from it the entire tent, and all its articles, and the men who were polluted by means of contact.

19. And so, in this manner, what is clean shall purify what is unclean, on the third and seventh days. And have been expiated on the seventh day, he shall wash both himself and his garments, and he shall be unclean until evening.

20. If anyone has not been expiated by this ritual, his soul shall perish from the midst of the Church. For he has polluted the Sanctuary of the Lord, and he has not been sprinkled with purifying waters.

21. This precept shall be an everlasting ordinance. Likewise, the one who has sprinkled the waters shall wash his garments. All who will have touched the waters of expiation shall be unclean until evening.

22. Whatever has been touched by something unclean will itself be made unclean. And the soul who touches any of these things shall become unclean until evening."

Numbers 19