HistoricalChristian.Faith

Numbers 19:9

9 And a man that is clean shall gather up the ashes of the heifer, and lay them up without the camp in a clean place, and it shall be kept for the congregation of the children of Israel for a water of separation: it is a purification for sin.
Commentaries
Cyprianon Numbers 19:9AD 258
And again: "The water of sprinkling is a purification." Whence it appears that the sprinkling also of water prevails equally with the washing of salvation; and that when this is done in the Church, where the faith both of receiver and giver is sound, all things hold and may be consummated and perfected by the majesty of the Lord and by the truth of faith.