2 Peter 2

It is a fixed and unchanging religious truth that the devil and his angels are never to return to the life and holiness of the saints. From Scripture we know that God's sentence implies that he dragged them down by infernal ropes to Tartarus and delivered them to be tortured and kept in custody for judgment. They will be received into everlasting fire and there tortured forever and ever.

Man did not fall away from the supreme Being as to be absolutely nothing, but insofar as he turned himself toward himself he became less than he was when he was adhering to him who is the supreme Being. To be no longer in God but in oneself is not to be nothing, but rather to be heading in that direction. For this reason, Holy Scripture gives another name to the proud, calling them "rash" and "self-willed."