NET
6 We are from God; the person who knows God listens to us, but whoever is not from God does not listen to us. By this we know the Spirit of truth and the spirit of deceit.
Darby
6 *We* are of God; he that knows God hears us; he who is not of God does not hear us. From this we know the spirit of truth and the spirit of error.
KJV
6 We are of God: he that knoweth God heareth us; he that is not of God heareth not us. Hereby know we the spirit of truth, and the spirit of error.