The apostle here magnifies the love of God in our adoption, 1 John 3:1, 2. He thereupon argues for holiness (1 John 3:3), and against sin, 1 John 3:4-19. He presses brotherly love, 1 John 3:11-18. How to assure our hearts before God, 1 John 3:19-22. The precept of faith, 1 John 3:23. And the good of obedience, 1 John 3:24.