Exodus 12 and 13 tell the story of the first feast that God commanded the Israelites to observe. The feast of Passover/Unleavened Bread with Israel's journey out of slavery Egypt and was intended to be remembered and celebrated every year after that.
Here are a couple of thoughts I had:
1) Although God commanded this 'feast', it was not a free-for-all eating event. It was, in fact, notable for what the Israelites were not allowed to eat (leaven).
2) The feast was really a re-enactment of what happened on the night that God delivered Israel from 430 years in Egypt. It was a way for each generation to remind themselves and teach their children about God's goodness and deliverance, "that the next generation might know... and arise and tell them to their children, so that they should set their hope in God and not forget the works of God, but keep his commandments; and that they should not be like their fathers, a stubborn and rebellious generation, a generation whose heart was not steadfast, whose spirit was not faithful to God." (Psalm 78)
This made me wonder, why we don't do that? I mean, in a way we do. Each time we take the Lord's Supper with other believers, for example, we observe an important memorial. But maybe we should commemorate other days - important days of God's goodness and leading and even deliverance - in significant ways with our families? Have you given this any thought? Or maybe you do this already. If so, please leave me a comment because I'd love to hear about it!
I found great meditation-food in these verses from 1 Corinthians 5: "7 Cleanse out the old leaven that you may be a new lump, as you really are unleavened. For Christ, our Passover lamb, has been sacrificed. 8 Let us therefore celebrate the festival, not with the old leaven, the leaven of malice and evil, but with the unleavened bread of sincerity and truth."
(I know that, in the context, these verses are referring to church discipline and not allowing someone in open, unrepentant sin to continue to be an unchallenged part of the body, but I think they also have application to individual believers.)
Working toward this: 'celebrating the festival with the unleavened bread of sincerity and truth'.