Matthew Poole and continuators on Numbers 19:12

12 He shall purifie himself with it on the third day , and on the seventh day he shall be clean : but if he purifie not himself the third day, then the seventh day he shall not be clean .

(i. e.) With the water of separation.

To Typifie Christs resurrection on that day, by which we are cleansed or sanctified.

To teach us, that our purification in this life is gradual, and not perfect till we come to that eternal Sabbath which the seventh day respected.

But was first to purifie himself and four dayes after that to be clean.

Marginal references: chap. 31. 19.