Exodus 12:25-27

Matthew(i) 25 And when ye be come in to the land which the Lord wyl geue you accordyng as he hath promysed, se that ye kepe thys seruyce. 26 And when youre children axe you what maner of seruyce is thys ye do? 27 Ye shal say: it is the sacrifice of the Lordes passeouer, which passed ouer the houses of the chyldren of Israel in Egypte, as he smote the Egypcyans & saued oure houses. Than the people bowed them selues & worshypped.