1:1-1:4 • The Word of Life
1:5-1:10 • God is Light
2:1-2:6 • Christ Our Advocate
2:7-2:17 • A New Commandment
2:18-2:29 • Warning against Antichrists
3:1-3:10 • Children of God
3:11-3:24 • Love One Another
4:1-4:6 • Testing the Spirits
4:7-4:21 • God Is Love
5:1-5:5 • Faith Conquers the World
5:6-5:12 • Testimony concerning the Son of God
5:13-5:21 • Epilogue