And Jehovah spoke to Moses, saying,
Hallow unto me every firstborn, whatever breaketh open the womb among the children of Israel, of man and of cattle: it is mine.
And Moses said to the people, Remember this day, in which ye came out from Egypt, out of the house of bondage; for with a powerful hand hath Jehovah brought you out from this; and nothing leavened shall be eaten.
References for Exodus 13:3
Ye come out to-day, in the month Abib.
References for Exodus 13:4
And it shall be when Jehovah hath brought thee into the land of the Canaanite and the Hittite and the Amorite and the Hivite and the Jebusite, which he swore to thy fathers to give thee, a land flowing with milk and honey, that thou shalt keep this service in this month.
References for Exodus 13:5
Seven days shalt thou eat unleavened bread; and in the seventh day is a feast to Jehovah.
Unleavened bread shall be eaten the seven days; and leavened bread shall not be seen with thee, neither shall there be leaven seen with thee in all thy borders.
And thou shalt inform thy son in that day, saying, It is because of what Jehovah did to me when I came out of Egypt.