Verses 1-5: Christ Our Advocate and the Test of Obedience. John begins by reassuring believers that Jesus is their advocate when they sin and the propitiation for sins worldwide. True knowledge of God is evidenced by obedience to His commandments.
Verses 6-11: Walking as Jesus Walked and the Commandment of Love. The call to imitate Christ’s walk is linked with love for fellow believers, contrasting light and darkness, and exposing hatred as spiritual blindness.
Verses 12-14: Addressing Different Groups in the Church. John writes to little children, young men, and fathers, affirming their spiritual status and victories, emphasizing the abiding word of God and overcoming the evil one.
Verses 15-17: Warning Against Worldly Love. The chapter warns against loving the world and its lusts, which are opposed to the Father, and contrasts temporal worldly desires with eternal life through doing God’s will.
Verses 18-27: The Reality of Antichrists and the Anointing of the Holy Spirit. John identifies the presence of many antichrists as a sign of the last times, contrasts them with believers who have received the Holy Spirit’s anointing, and stresses abiding in the truth.
Verses 28-29: Exhortation to Abide in Christ. The chapter closes with an encouragement to remain in Christ, so believers may have confidence at His coming, linking righteousness with being born of God.