Exodus 12:13-14
Exodus 12:13-14 GNBUK
The blood on the doorposts will be a sign to mark the houses in which you live. When I see the blood, I will pass over you and will not harm you when I punish the Egyptians. You must celebrate this day as a religious festival to remind you of what I, the LORD, have done. Celebrate it for all time to come.”