Lucifer confronts Katherine and tells her that "other angels" have taken up this war against mankind, and since then, no human souls have been able to enter Heaven. He knows Gabriel plans to use Hawthorne's soul to overthrow the obedient angels. He also knows that if Gabriel wins the war under his influence Heaven will ultimately devolve into another Hell, which Lucifer considers "one Hell too many". Lucifer then appears to Thomas and advises him to use Gabriel's lack of faith against him. When Gabriel arrives and attempts to disrupt the exorcism ritual, Thomas kills Rachael, and he and Katherine fight Gabriel. Gabriel defeats them and moves to kill Katherine.