Moses words could have been relayed, as speakers have done in more modern times before sound amplification. Stuart points out, “George Whitefield, the famous eighteenth century preacher in America, drew crowds of many thousands to hear his open-air preaching. Crowds in the tens of thousands heard presidential inaugurals and other public speeches long before the advent of electronic sound amplification.” Stuart, Douglas K. The New American Bible Commentary: Exodus. Vol. 2. Nashville, TN: B & H Group, 2006. 303.