In the exodus, God redeemed his people - restored them to their intended purpose. In giving them his law, he revealed to them his instructions for living. In giving them the tabernacle, he called them to worship. Each section represents an emphatic statement that God is with and for his people, calling them into fellowship. The themes are related, and they establish a paradigm for our lives.
Redemption leads to revelation, both of which lead to worship.
God has redeemed us in Christ and he has given us his word. It is also possible in these three sections to see God's three-fold function for man. In redemption, God bought Israel out of slavery and made it like a king, exercising dominion in the promised land. In revelation, God made Israel like a prophet, receiving and dispensing his word. In worship, God made Israel like a priest, worshiping God .