Matthew Sleeth, MD, a former emergency room physician and chief of the hospital medical staff, resigned from his position to teach, preach, and write about faith and stewardship issues. Dr. Sleeth has spoken at more than one thousand churches, campuses, and events, including serving as a monthly guest preacher at the Washington National Cathedral. Dr. Sleeth is the executive director of Blessed Earth And Author Of numerous articles and books, including Serve God, Save the Planet, and 24/6.