Numbers 19:20

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 .