Deuteronomy 16:1-2

1The month Abib is a special month for you. In this month, you must eat a meal to remember the Passover. Remember what the Lord your God did for you. In that month, he brought you out of Egypt during the night.

2You must go to the special place that the Lord will choose for his people to worship him. There you must kill one of your animals as a sacrifice to remember the Passover. You may kill one of your cows or sheep.