We know that we are of God, and that the entire world is established in wickedness.
And we know that we are of God, and the whole world lieth in wickedness.
We know [positively] that we are of God, and the whole world [around us] is under the power of the evil one.
We know that we are of God, and the whole world lieth in the evil one.
We know we are from God, and the whole world lies in the power of the evil one.