Numbers 19:11

11.He that toucheth the dead body. He now recites certain forms of pollution in which the washing was necessary; all of them, however, come to the point, that men are defiled by the touch of a corpse or, bones, or a grave. Nor is there here any distinction between the body of a person who is slain, or of one who has died in bed; whence it follows that death is here set forth as a mirror of God’s curse: And assuredly, if we consider its origin and cause, the corruption of nature, whereby the image of God is defaced, presents itself in every, dead man; for, unless we were altogether corrupt, we should not be born to perish But God also taught His people by another mode of signifying it, that uncleanness is contracted by our communication with the unfruitful works of darkness. For the Apostle (Hebrews 6:1) calls them “dead works,” either from their consequences, or because, as faith is the life of the soul, so unbelief keeps it in death. Since, then, the corpse the bones, the grave, designate whatever we bring from the womb, because, until we are born again, and God quickens us by His Spirit and faith, we are dead while we live; there is no question but that the children of Israel were reminded, that in order to keep themselves pure before God, they must abstain from all corruption; inasmuch as, if they were rendered unclean by their contact with a dead man, they must immediately have recourse to ablution. In fine, the ceremony had no other object than that they should serve God in pureness from the sins of the flesh; and exercise themselves in constant thoughts of repentance, whilst, if they fell from their purity, they should labor to obtain reconciliation with God, by means of sacrifice and ablution.