In chapters 3-5 of 1 John, the apostle John declares, "Look at how great a love the Father has given us, that we should be called God's children. And we are!" Since we are God's children, the world does not understand us, because His Spirit is within us, and some day when He comes again we will be like Him. As believers we are born of God, and His seed abides in us, which keeps us from sin. John gave the example of Cain and Abel and how Cain murdered his brother because his own deeds were evil, but his brother's deeds were righteous. The world will also treat us in like manner. In chapter 4, believers were warned to test the spirits to make sure they are from God. The spirit of the anti-Christ was already in the world, but those who are children of God do not need to fear because, "Greater is He that is in me than he that is in the world." Believers in Jesus abide in Him, and therefore do not fear because love perfected them. Our love displays what we truly believe, and it is our faith that brings us victory that overcomes the world (Chapter 5). Since Jesus is the Son of God and the Son of Man, the Messiah, and because He shed His blood for us, we can know that we have eternal life. Those who are children of God are protected from the evil one, because Jesus, the One who is born of God, keeps them. John's last warning is for believers to keep themselves from idols
