You are to observe the month of Abib and to celebrate the Passover to the Lord your God, because it was in the month of Abib that the Lord your God led you out of Egypt by night.
All your men must come before the Lord your God in the place He will choose three times every year: the Festival of Bread without Yeast, the Festival of Weeks, and the Festival of Shelters. No one should come before the Lord without an offering.