Exodus 12:12-13

New King James Version

¹² ‘For I ^(A)will pass through the land of Egypt on that night, and will strike all the firstborn in the land of Egypt, both man and beast; and ^(B)against all the gods of Egypt I will execute judgment: ^(C)I am the Lord. ¹³ Now the blood shall be a sign for you on the houses where you are. And when I see the blood, I will pass over you; and the plague shall not be on you to destroy you when I strike the land of Egypt.