The Discipline of God

It is part of the discipline of God to make His loved ones perfect through trial and suffering. Only by carrying the Cross can one reach the Resurrection. It was precisely this part of Our Lord's Mission that the devil attacked. The temptations were meant to divert Our Lord from His task of salvation through sacrifice. Instead of the Cross as a means of winning the souls of men, Satan suggested three short cuts to popularity: an economic one, another based on marvels, and a third, which was political. Very few people believe in the devil these days, which suits the devil very well. He is always helping to circulate the news of his own death. The essence of God is existence, and He defines himself as: "I am Who am." The essence of the devil is the lie, and he defines himself as: "I am who am not." Satan has very little trouble with those who do not believe in him; they are already on his side.

Life of Christ by Fulton Sheen