Deuteronomy 16:1-3

Young's Literal Translation

16 `Observe the month of Abib -- and thou hast made a passover to Jehovah thy God, for in the month of Abib hath Jehovah thy God brought thee out of Egypt by night;

² and thou hast sacrificed a passover to Jehovah thy God, of the flock, and of the herd, in the place which Jehovah doth choose to cause His name to tabernacle there.

³ `Thou dost not eat with it any fermented thing, seven days thou dost eat with it unleavened things, bread of affliction; for in haste thou hast come out of the land of Egypt; so that thou dost remember the day of thy coming out of the land of Egypt all days of thy life;