Numbers 19:13

Whoever touches a dead person, the body of anyone who has died , and does not cleanse himself, defiles the tabernacle of the Lord , and that person shall be cut off from Israel ; because the water for impurity was not thrown on him, he shall be unclean . His uncleanness is still on him.

If they fail to purify themselves after touching a human corpse, they defile the Lord`s tabernacle. They must be cut off from Israel. Because the water of cleansing has not been sprinkled on them, they are unclean; their uncleanness remains on them.

Whosoever toucheth the dead body of any man that is dead, and purifieth not himself, defileth the tabernacle of the Lord; and that soul shall be cut off from Israel : because the water of separation was not sprinkled upon him, he shall be unclean; his uncleanness is yet upon him.