1 John 3 speaks about the love that God has bestowed upon us as his children. The chapter emphasizes the importance of living a righteous and loving life. It reminds us that as children of God, we are called to show love to others, just as Christ did. The chapter also discusses how our actions and behaviors reveal whether or not we are truly children of God. At the samte time, it highlights the assurance of salvation and the hope we have in Christ's return.