You must roast it over a fire and eat it with bread made without yeast. “On that same night I will pass through Egypt and strike down every firstborn of both people and animals, and I will bring judgment on all the gods of Egypt. I am the Lord".The blood will be sign, and i will pass over you.
"Tell all of Israel that on the tenth day the man of each household is to get a lamb. On the fourteenth day you must slaughter the lamb and spread its blood on the side and top of your door.
You must all get a lamb and one the fourteenth day slaughter it a spread the blood across the side and top of your door.
On that same night the Lord will pass over Egypt and kill every first born. The blood will be a sign and he will pass over your family.
The Lord said to Aaron and Moses... Bible reference (Exodus 12 the Passover and the festival of unleavened bread 12-13.)
So Aaron and Moses told the people of Israel...
So the people of Israel did what they were told, and got a lamb, killed it and spread the blood around their door.
As the Lord had said he passed over Egypt, ignoring the houses with blood...
And cursed those who didn't.
Meanwhile the people of Israel enjoyed the festival of unleavened bread, and ate the lamb they had killed.