A man once said, "Those who don't learn from history are doomed to repeat it." In the church's infancy, John, the writer of Revelation, brought God's specific word to seven churches in the form of letters detailing the good, the bad and the ugly in the hearts of these people. As we read and listen to those ancient words, we realize they echo through the ages to us as a warning and as encouragement to learn from history and listen for God's "letters from the sky."