'Plague' in the Bible

Now the Lord said to Moses, “One more plague I will bring on Pharaoh and on Egypt; after that he will let you go from here. When he lets you go, he will surely drive you out from here completely.

The blood shall be a sign for you on the houses where you live; and when I see the blood I will pass over you, and no plague will befall you to destroy you when I strike the land of Egypt.

“When you take a census of the sons of Israel to number them, then each one of them shall give a ransom for himself to the Lord, when you number them, so that there will be no plague among them when you number them.