出埃及记 12:13

这血要在你们所住的房屋上作记号；我一见这血，就越过你们去。我击杀埃及地头生的时候，灾殃必不临到你们身上灭你们。」

And the blood shall be to you for a token upon the houses where ye 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 smite the land of Egypt.