What he said was 
“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")

He also said when discussing the Counter-Church of Satan -  "The False Church will be worldly, ecumenical, and global. It will be a loose federation of churches and religions, forming some type of global association...A world parliament of Churches. It will be emptied of all Divine content, it will be the mystical body of the anti-christ. The Mystical Body on earth today will have its Judas Iscariot, and he will be the false prophet. Satan will recruit him from our Bishops."