7 Bible Verses about Contamination

Or if a soul shall touch any unclean thing, whether a carcass of an unclean beast, or a carcass of unclean cattle, or the carcass of unclean creeping animals, and it shall be hidden from him; he also shall be unclean, and guilty.

And whomsoever he toucheth that hath the issue (and hath not rinsed his hands in water) he shall wash his clothes, and bathe himself in water, and be unclean until the evening.

Whoever toucheth the dead body of any man that is dead, and purifieth not himself, defileth the tabernacle of the LORD; and that soul shall be cut off from Israel: because the water of separation was not sprinkled upon him, he shall be unclean; his uncleanness is yet upon him.

Depart ye, depart ye, go ye out from thence, touch no unclean thing; go ye out of the midst of her; be ye clean, that bear the vessels of the LORD.

And the LORD spoke to Moses and to Aaron, saying, When ye shall have come into the land of Canaan, which I give to you for a possession, and I put the plague of leprosy in a house of the land of your possession; And he that owneth the house shall come and tell the priest, saying, it seemeth to me there is as it were a plague in the house:read more.
Then the priest shall command that they empty the house, before the priest shall enter to see the plague, that all that is in the house may not be made unclean; and afterward the priest shall go in to see the house: And he shall look on the plague, and behold, if the plague is in the walls of the house, with hollow streaks, greenish, or reddish, which in sight are lower than the wall; Then the priest shall go out of the house to the door of the house, and shut up the house seven days: And the priest shall come again the seventh day, and shall look; and behold, if the plague is spread in the walls of the house; Then the priest shall command that they take away the stones in which the plague is, and they shall cast them into an unclean place without the city: And he shall cause the house to be scraped within on all sides, and they shall pour out the dust that they scrape off without the city into an unclean place: And they shall take other stones, and put them in the place of those stones; and he shall take other mortar, and shall plaster the house. And if the plague shall return, and break out in the house, after that he hath taken away the stones, and after he hath scraped the house, and after it is plastered; Then the priest shall come and look; and behold, if the plague is spread in the house, it is a fretting leprosy in the house: it is unclean. And he shall break down the house, its stones, and its timber, and all the mortar of the house: and he shall carry them forth out of the city to an unclean place. Moreover, he that goeth into the house all the while that it is shut up, shall be unclean until the evening. And he that lieth in the house shall wash his clothes: and he that eateth in the house shall wash his clothes.

And the LORD spoke to Moses, saying, Command the children of Israel, that they put out of the camp every leper, and every one that hath an issue, and whoever is defiled by the dead: Both male and female shall ye put out, without the camp shall ye put them; that they defile not their camps, in the midst of which I dwell.read more.
And the children of Israel did so, and put them out without the camp: as the LORD spoke to Moses, so did the children of Israel.

But that we write to them that they abstain from pollutions of idols, and from lewdness, and from things strangled, and from blood.