Three themes repeatedly come up in Exodus: salvation, holiness and God’s people. Salvation is shown in how God consistently saves His people, the Israelites, who were led to God after He took them out of slavery in Egypt. This shows us that God’s people have a covenant with Him.
With the benefit of the hindsight we have today, we can see that while the laws were good for people to live in accordance to God, they also pointed to Jesus. This leads us to consider two questions: What is a Christian? What makes a Christian a Christian?