7 Bible Verses about Contamination

If you touch anything unclean such as an unclean dead body of a wild or tame animal or the body of an unclean, swarming creature and then ignore what you did, you are unclean and will be guilty.

If a man who has a discharge touches anyone without first rinsing his hands, the person he touched must wash his clothes and his body. He will be unclean until evening.

Those who touch a corpse and do not purify themselves remain unclean. This is because the water for purification has not been thrown over them. They defile Jehovah's tent, and they will no longer be considered God's people.

Get out of her my people! Touch no unclean thing! Come out from it and be pure, you who carry the vessels of Jehovah.

Jehovah spoke to Moses and Aaron: When you come to Canaan that I am going to give to you, mildew may appear in a house. The owner of that house must come and tell the priest that there is something that looks like mildew in his house.read more.
Before the priest examines the house, he will order everything taken out of it so that nothing in the house will become unclean. Then the priest will go inside to examine the house. He will examine the mildew area on the walls. If it is green and red in sunken areas that are deeper than the rest of the wall, the priest will go out to the door of the house and close up the house for seven days. The priest will go back and examine it again on the seventh day. If the mildew in the walls of the house has spread, he must order the stones that have the mildew to be torn out and thrown outside the city in an unclean place. He must have the entire inside of the house scraped. The plaster dust scraped off the walls must be dumped in an unclean place outside the city. The stones must be replaced, and the house must be plastered again. If the mildew breaks out again in the house after the stones have been removed and the house has been scraped and plastered, the priest will go and look. If it has spread, the house is unclean. It must be torn down, and its stones, its wood, and all its plaster must be carried out of the city to an unclean place. Whoever goes into the house during the time that he has quarantined it, becomes unclean until evening. Whoever lies down in the house must wash his clothes, and whoever eats in the house must wash his clothes.

Jehovah said to Moses: Command the Israelites to send outside the camp anyone who has a serious skin disease or a discharge or anyone who is unclean from touching a dead body. Send all of these unclean men and women outside the camp. They must not make this camp where I live among you unclean.read more.
Thus the Israelites did as Jehovah told Moses. They sent these unclean people outside the camp.

We should write to them that they should abstain from things polluted by idols, from fornication, from things strangled and from blood.