Exodus 12 is one of the most remarkable and important chapters in the Bible.  In it we learn:

1. Only God can deliver us from sin.
2. The penalty of sin is death.
3. We don't have to die because God is willing to allow a substitute death.
4. Faith is the basis of our salvation.  Our belief results in our obedience.
5. The Old Testament Passover lamb is a foreshadowing of the New Testament Passover Lamb, Jesus Christ.
6. We are saved the same way the Israelites were saved: by faith in the substitutionary atonement of the Lamb which God provided.
7. Not to accept this avenue of escape is to suffer the wrath of God.