The LORD said to Moses and Aaron in Egypt,
"This month will be the very first month of the year for you.
Tell the whole community of Israel: On the tenth [day] of this month each man must take a lamb or a young goat for his family--one animal per household.
A household may be too small to eat a whole animal. That household and the one next door can share one animal. Choose your animal based on the number of people and what each person can eat.
Your animal must be a one-year-old male that has no defects. You may choose a lamb or a young goat.
Take care of it until the fourteenth [day] of this month. "Then at dusk, all the assembled people from the community of Israel must slaughter their animals.
They must take some of the blood and put it on the sides and tops of the doorframes of the houses where they will eat the animals.