Dr. Owen Strachan explores the restoration of Peter in John 21:15-19. He emphasizes that God has amazing grace and mercy for Christians every day of their Christian life. Strachan provides five observations on how God restores sinners, focusing on Jesus going to Peter, engaging him in a dialogue, redirecting his attention to love, giving him marching orders, and foretelling his fate. He encourages listeners to understand that Christianity is not about legalistic rituals but a glad following of Jesus, with the assurance that God forgives and helps us keep following Him.