“‘Then a man who is ceremonially clean must gather up the ashes of the red heifer and put them in a ceremonially clean place outside the camp. They must be kept ¹  for the community of the Israelites for use in the water of purification ²  – it is a purification for sin. ³ 

Anyone who touches the corpse of any dead person and does not purify himself defiles the tabernacle of the Lord. And that person must be cut off from Israel, ¹  because the water of purification was not sprinkled on him. He will be unclean; his uncleanness remains on him.

But the man who is unclean and does not purify himself, that person must be cut off from among the community, because he has polluted the sanctuary of the Lord; the water of purification was not sprinkled on him, so he is unclean.

everything that may stand the fire, you are to pass through the fire, ¹  and it will be ceremonially clean, but it must still be purified with the water of purification. Anything that cannot withstand the fire you must pass through the water.