God is light. The word of life.Walking in the light.Do not love the world. Warning against Antichrist. God is Love. Children of God. Love one another. Test the spirits. God's love and ours. God is life. Faith in the son of God. Concluding remarks.Watch out for false teachers. John's final words. God's children live by the standards of the gospel. John's final words. The dangers of false teachers.The duty to fight for God's truth. Call to persevere.Doxology.