12 For I will pass through the land of Egypt this night, and will strike every firstborn in the land of Egypt, both man and beast; and against all the gods of Egypt I will execute judgment. I am Jehovah.13 And the blood shall be a sign unto you on the houses where you are. And when I see the blood, I will pass over you; and the plague shall not be upon you to destroy you when I strike the land of Egypt.