Theodore Epp emphasizes the dual nature of the tongue, which can both praise God and slander others, often within the same context, such as the church. He points out that such inconsistencies arise from the heart, and only a godly heart can produce godly words. To cultivate a godly heart, believers must understand their position in Christ, reckon it as true, and yield themselves completely to Him. Epp encourages controlling our words by first controlling our thoughts, aligning them with Christ's obedience. He concludes with a prayer for divine help in guarding our speech.