In this letter, Peter urges his readers to deepen their faith, emphasizing that God's promises, revealed through the prophets and apostles, are entirely trustworthy. He encourages believers to pursue spiritual growth by adding essential virtues like knowledge, self-control, and love to their faith. Peter highlights the certainty of Jesus' return, the impending judgment on evil, and the creation of a new heaven and earth. He motivates believers daily to cultivate godly traits such as goodness, righteousness, and perseverance.