“A voice from the burning bush commanded Moses to lead his people out of Egypt, but Moses was ‘slow of speech, and of a slow tongue.’ When the time came to inform the Israelites of God’s command, Moses’ brother, Aaron, ‘spake all the words that the Lord had spoken unto Moses.’ I always imagine Moses standing in the desert, trimming the bush, and pleading: ‘C-C-Come on, Aaron, why d-d-don’t you tell them?’ From Moses on, Jews have worried about words.”