Numbers 19:11

Command the children of Israel, that they put out of the camp every leper, and every one that hath an issue, and whosoever is defiled by the dead:

And do ye abide without the camp seven days: whosoever hath killed any person, and whosoever hath touched any slain, purify both yourselves and your captives on the third day, and on the seventh day.

And the Lord said unto Moses, Speak unto the priests the sons of Aaron, and say unto them, There shall none be defiled for the dead among his people:

Neither shall he go in to any dead body, nor defile himself for his father, or for his mother;

And whosoever toucheth one that is slain with a sword in the open fields, or a dead body, or a bone of a man, or a grave, shall be unclean seven days.

Speak unto the children of Israel, saying, If any man of you or of your posterity shall be unclean by reason of a dead body, or be in a journey afar off, yet he shall keep the passover unto the Lord.

And there were certain men, who were defiled by the dead body of a man, that they could not keep the passover on that day: and they came before Moses and before Aaron on that day:

Wherefore, as by one man sin entered into the world, and death by sin; and so death passed upon all men, for that all have sinned:

Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you,

And you hath he quickened, who were dead in trespasses and sins;

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.

How much more shall the blood of Christ, who through the eternal Spirit offered himself without spot to God, purge your conscience from dead works to serve the living God?

They have wandered as blind men in the streets, they have polluted themselves with blood, so that men could not touch their garments.

These are unclean to you among all that creep: whosoever doth touch them, when they be dead, shall be unclean until the even.