Puritan preacher, John Flavel, called guarding one's heart, "the great business of the Christian life." In Proverbs 4:23, Solomon echoes that same priority. This message (from Proverbs 4:20-27) asks the following questions: Why do we need to guard our hearts? What are we guarding our hearts against? How best can we guard our hearts? What is the result of guarding our hearts?