“I am the Lord your God, who brought you out of Egypt, out of the land of slavery.” — Exodus 20:2 If little green men suddenly appeared on this planet and it was your job to teach them about the Lord, what might you tell them? My guess is that nine out of ten people would include “creator of the world” in their first sentence. That is, after all, arguably God’s most famous act. However the first time that God introduces Himself to the world at large, by revealing himself at Sinai and handing down the Ten Commandments, this is...