8 And thou shalt shew thy son in that day, saying, This is done because of that which the Lord did unto me when I came forth out of Egypt.

9 And it shall be for a sign unto thee upon thine hand, and for a memorial between thine eyes, that the Lord’s law may be in thy mouth: for with a strong hand hath the Lord brought thee out of Egypt.

10 Thou shalt therefore keep this ordinance in his season from year to year.

Once again the Israelites were instructed to point their children to the miracles in Egypt whenever they held their yearly Passover. Constantly reinforcing the reasons for the tradition in this way would help to prevent any adulteration of the practice, such as co-opting it for pagan rituals.

This idea of teaching and reminding the rising generation is continued in verse 9. Here we have the first reference to the phylacteries, small boxes with rolls of scripture that could be bound to the back of the hand or across the forehead. The wearing of the phylacteries would be the literal fulfillment of God’s commandment, and recalling His instructions in every thought and action would be the metaphorical fulfillment.

The notion of teaching the next generation what God had done previously and instilling faith in those past events has always been an essential element of discipleship. As I mentioned yesterday, the Israelites in Moses’s time were already far removed from the miracles that Abraham saw; they only had stories of those events. Of course, now they had seen their own set of miracles in Egypt, but their children would again only have the stories. Eventually, those children would see the parting of the Jordan River and the falling of Jericho, but the children’s children would again only have the stories. And so on and so on. Now and again, God’s people do see incredible signs and wonders, but in between those special moments, the belief is preserved by faith in the stories of old. We believers operate by trust and hope, living our lives in anticipation and reflection, only receiving a surety when we pass to the other side.