This study guide explores the transition of leadership and community unity as Jesus prepares his disciples for his departure. It explains that Christ secures his followers' bond through a new commandment to love one another, a mandate rooted in the eternal, sacrificial love shared within the Trinity. The text emphasizes that this specific type of love serves as the definitive identity marker for true believers, distinguishing them from the world. Furthermore, the source highlights that such selfless affection is impossible to achieve through human willpower alone, as seen in Peter’s failure and eventual restoration. Ultimately, the message concludes that the Holy Spirit empowers the church to maintain its unity and mission by reflecting the love of God to one another.