Kutoka 12 : 13 Exodus chapter 12 verse 13

Na ile damu itakuwa ishara kwenu katika zile nyumba mtakazokuwamo; nami nitakapoiona ile damu, nitapita juu yenu, lisiwapate pigo lo lote likawaharibu, nitakapoipiga nchi ya Misri.
soma Mlango wa 12

The blood shall be to you for a token on the houses where you are: and when I see the blood, I will pass over you, and there shall no plague be on you to destroy you, when I strike the land of Egypt.