7 Bible Verses about Contamination

If anyone becomes unclean through touching unconsciously some unclean thing, such as the dead body of an unclean beast or of unclean cattle or of any unclean animal which goes flat on the earth, he will be responsible:

And anyone on whom the unclean man puts his hands, without washing them in water, is to have his clothing washed and his body bathed in water and be unclean till evening.

Anyone touching the body of a dead man without making himself clean in this way, makes the House of the Lord unclean; and that man will be cut off from Israel: because the water was not put on him, he will be unclean; his unclean condition is unchanged.

Away! away! go out from there, touching no unclean thing; go out from among her; be clean, you who take up the vessels of the Lord.

And the Lord said to Moses and Aaron, When you have come into the land of Canaan which I will give you for your heritage, if I put the leper's disease on a house in the land of your heritage, Then let the owner of the house come and say to the priest, It seems to me that there is a sort of leper's disease in the house.read more.
And the priest will give orders for everything to be taken out of the house, before he goes in to see the disease, so that the things in the house may not become unclean; and then the priest is to go in to see the house; And if he sees that the walls of the house are marked with hollows of green and red, and if it seems to go deeper than the face of the wall; Then the priest will go out of the door of the house, and keep the house shut up for seven days: And the priest is to come again on the seventh day and have a look and see if the marks on the walls of the house are increased in size; Then the priest will give orders to them to take out the stones in which the disease is seen, and put them out into an unclean place outside the town: And he will have the house rubbed all over inside, and the paste which is rubbed off will be put out into an unclean place outside the town: And they will take other stones and put them in place of those stones, and he will take other paste and put it on the walls of the house. And if the disease comes out again in the house after he has taken out the stones and after the walls have been rubbed and the new paste put on, Then the priest will come and see it; and if the disease in the house is increased in size, it is the leper's disease working out in the house: it is unclean. And the house will have to be pulled down, the stones of it and the wood and the paste; and everything is to be taken out to an unclean place outside the town. And, in addition, anyone who goes into the house at any time, while it is shut up, will be unclean till evening. And anyone who has been sleeping in the house will have to have his clothing washed; and anyone who takes food in that house will have to have his clothing washed.

And the Lord said to Moses, Give orders to the children of Israel to put outside the tent-circle every leper, and anyone who has any sort of flow from his body, and anyone who is unclean from the touch of the dead; Male or female they are to be put outside the tent-circle, so that they may not make unclean my resting-place among them.read more.
So the children of Israel did as the Lord had said to Moses, and put them outside the tent-circle.

But that we give them orders to keep themselves from things offered to false gods, and from the evil desires of the body, and from the flesh of animals put to death in ways against the law, and from blood.