Exodus is such a familiar story, but I was newly-struck with how resonant the analogy is:
The Passover was given to Israel as a "founding holiday", in that it marked the very beginning of that nation, and the fulfilment of the promise given to Abraham. The lamb was slain, and the blood marked their doorways, so that the angel of the Lord passed over them in his wrath. They were then torn away from Egypt, out into the wilderness, to worship and to learn how to become God's holy people. They were led by the spirit of God in the form of the pillar of cloud and flame, and fed daily with manna.
This becomes the model for the work of Jesus, and a radical expansion in how Abraham's promises were fulfilled. Jesus' crucifixion marks the beginning of the Church as a new nation, a holy kingdom, as God's people. Jesus is our "lamb who was slain", whose blood covers us from God's wrath. We were torn away from our bondage to sin, and went out together, learning how to worship God and become a holy community. We are not yet "home", but look forward to a land that has been promised to us, that God has prepared for us. We are led by the Holy Spirit, and fed daily by the living bread which is Jesus himself ("I am the bread of life... which comes down from heaven").
The analogy feels almost endless, in how it reflects the Old Testament into the New. Who can measure the wisdom and power and loving-kindness of the Lord towards his people?