Bible Verses About Purifications: Consequence of neglecting those prescribed by law

But if he wash them not, nor bathe his flesh, then he shall bear his iniquity.

Whosoever toucheth a dead person, the body of a man that hath died, and purifieth not himself, defileth the tabernacle of Jehovah; and that soul shall be cut off from Israel: because the water for impurity was not sprinkled upon him, he shall be unclean; his uncleanness is yet upon him.

But the man that shall be unclean, and shall not purify himself, that soul shall be cut off from the midst of the assembly, because he hath defiled the sanctuary of Jehovah: the water for impurity hath not been sprinkled upon him; he is unclean.