You, dear children, are from God and have overcome them, because the one who is in you is greater than the one who is in the world.
In context
2This is how you know the Spirit of God: every spirit that confesses that Jesus Christ has come in the flesh is from God, 3and every spirit that does not confess Jesus is not from God. This is the spirit of the antichrist, which you have heard is coming, and now is already in the world. 4You, dear children, are from God and have overcome them, because the one who is in you is greater than the one who is in the world. 5They belong to the world; therefore what they say belongs to the world, and the world listens to them. 6We are from God. Whoever knows God listens to us; whoever is not from God does not listen to us. This is how we know the Spirit of truth from the spirit of deception.