Thematic Bible: Passing over the first-born

"I will pass through the land of Egypt on that night and strike every firstborn [male] in the land of Egypt, both man and beast. I am the Lord; I will execute judgments against all the gods of Egypt. The blood on the houses where you are staying will be a distinguishing mark for you; when I see the blood, I will pass over you. No plague will be among you to destroy [you] when I strike the land of Egypt.