But the man that shall be unclean
 By touching any dead body, bone, or grave: 
 and shall not purify himself;
 with the water of purification: 
 that soul shall be cut off from among the congregation:
 (See Gill on Numbers 19:13). 
 because he hath defiled the sanctuary of the Lord:
 by going into it in his uncleanness: 
 the water of separation hath not been sprinkled upon him, he is
 unclean;
 and will remain so, for nothing else could purify him, see ( Numbers 19:13 ) .