Leviticus 22:6
"The soul which hath touched any such shall be unclean until even, and shall not eat of the holy things, unless he wash his flesh with water."
Cross References (ranked by relevance)
Let us draw near with a true heart in full assurance of faith, having our hearts sprinkled from an evil conscience, and our bodies washed with pure water.
And whosoever toucheth his bed shall wash his clothes, and bathe himself in water, and be unclean until the even.
Then said Haggai, If one that is unclean by a dead body touch any of these, shall it be unclean? And the priests answered and said, It shall be unclean.
And such were some of you: but ye are washed, but ye are sanctified, but ye are justified in the name of the Lord Jesus, and by the Spirit of our God.