Calvin Whittman, a skilled communicator and pastor at Green Valley Baptist Church, shares his journey from broadcast media to gospel-centered preaching. He discusses the power of expository preaching and the importance of connecting sermons to Scripture. Calvin emphasizes concise communication, effective sermon preparation, and how personal conviction enhances his delivery. He also highlights culturally authentic worship in missions, showcasing his experiences abroad, while advocating for thoughtful stewardship of congregants' time in preaching.