Overcoming the World
John explains that believing Jesus is the Christ marks a person as born of God, and that love for God necessarily extends to His children. Love for the children of God is shown not by sentiment detached from God, but by loving God and keeping His commandments. Those commandments are not burdensome, because everyone born of God overcomes the world. The victory that overcomes the world is faith itself, specifically faith that Jesus is the Son of God. The paragraph gathers together the letter's repeated themes of faith, obedience, and love as one coherent pattern of new birth.
E1veryone who believes that Jesus is the Christ has been born of God, and everyone who loves the Father also loves those born of Him. 2By this we know that we love the children of God: when we love God and keep His commandments. 3For this is the love of God, that we keep His commandments. And His commandments are not burdensome, 4because everyone born of God overcomes the world. And this is the victory that has overcome the world: our faith. 5Who then overcomes the world? Only he who believes that Jesus is the Son of God.
John then identifies Jesus Christ as the One who came by water and blood, not by water only, and says that the Spirit testifies because the Spirit is the truth. He adds that there are three witnesses — the Spirit, the water, and the blood — and these three agree. The paragraph emphasizes that faith in Jesus rests on divinely coherent testimony rather than private speculation or mere human opinion.
6This is the One who came by water and blood, Jesus Christ — not by water alone, but by water and blood. And it is the Spirit who testifies to this, because the Spirit is the truth. 7For there are three that testify: 8the Spirit, the water, and the blood — and these three are in agreement.