But the blood will be a sign on the houses where you are. When I see the blood, I will pass over you. Nothing terrible will hurt you when I punish the land of Egypt.
This feast is like a mark on your hand and a reminder on your forehead to help you remember that the Lord brought us out of Egypt with his great power.”
So now, promise me before the Lord that you will show kindness to my family just as I showed kindness to you. Give me some proof that you will do this.