12 For I will go through the land of Egypt in that night, and will smite all the first-born in the land of Egypt, both man and beast, and against all the gods of Egypt I will execute judgments. I am LORD.13 And the blood shall be to you for a sign upon the houses where ye are. And when I see the blood, I will pass over you, and there shall no plague be upon you to destroy you, when I smite the land of Egypt.