The document discusses the importance of being diligent in following God's commandments. It provides several examples from the Bible where people are told to be diligent in obeying God's voice, remembering what they have seen and been taught, and passing those teachings on to future generations. The purpose of diligence is so that people may inherit salvation and enter God's rest, as Jesus was the perfect example of obedience that allows others to inherit if they are also diligent in obeying God.