7 Bible Verses about Contamination

Or if any one touch any unclean thing, whether it be the carcass of an unclean beast, or the carcass of unclean cattle, or the carcass of unclean creeping things, and it be hidden from him, and he be unclean, then he shall be guilty.

And whomsoever he that hath the issue toucheth, without having rinsed his hands in water, he shall wash his clothes, and bathe himself in water, and be unclean until the even.

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.

Depart ye, depart ye, go ye out from thence, touch no unclean thing; go ye out of the midst of her; cleanse yourselves, ye that bear the vessels of Jehovah.

And Jehovah spake unto Moses and unto Aaron, saying, When ye are 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; then he that owneth the house shall come and tell the priest, saying, There seemeth to me to be as it were a plague in the house.read more.
And the priest shall command that they empty the house, before the priest goeth in to see the plague, that all that is in the house be not 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 be in the walls of the house with hollow streaks, greenish or reddish, and the appearance thereof be 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 be spread in the walls of the house; then the priest shall command that they take out the stones in which the plague is, and cast them into an unclean place without the city: and he shall cause the house to be scraped within round about, and they shall pour out the mortar, 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 come again, and break out in the house, after that he hath taken out the stones, and after he hath scraped the house, and after it is plastered; then the priest shall come in and look; and, behold, if the plague be spread in the house, it is a fretting leprosy in the house: it is unclean. And he shall break down the house, the stones of it, and the timber thereof, and all the mortar of the house; and he shall carry them forth out of the city into an unclean place. Moreover he that goeth into the house all the while that it is shut up shall be unclean until the even. And he that lieth in the house shall wash his clothes; and he that eateth in the house shall wash his clothes.

And Jehovah spake unto Moses, saying, Command the children of Israel, that they put out of the camp every leper, and every one that hath an issue, and whosoever is unclean by the dead: both male and female shall ye put out, without the camp shall ye put them; that they defile not their camp, in the midst whereof I dwell.read more.
And the children of Israel did so, and put them out without the camp; as Jehovah spake unto Moses, so did the children of Israel.

but that we write unto them, that they abstain from the pollutions of idols, and from fornication, and from what is strangled, and from blood.