The Roman Catholic is told that the Holy Spirit preserve the Popes from making mistake in questions of Faith and moral.
Pope Pius XII forced a doctrine on the Vatican Church in 1950 called the «Papal infallibility». It is a dogma that, by action of the Holy Spirit, the Pope is preserved from even the possibility of error when he solemnly declares or promulgates teaching on faith or morals.
Since the Popes claim they are successor to the Apostle Peter, Pius XII made them some kind of super-humans even compared to Peter. Because the Jewish fisherman after had receieved the Power of the Holy Spirit on the day of Pentecost, committed serious errors, and was rebuked by Paul. This is explained to us in Gal 2:11.
Since the Bible say that the Holy Spirit is equally available to all believers, we can only be sure of one thing: Any man, Pope, Priest or Pastor, who claim superiority over other believers, may they be laymen or ordained, is ruled by the spirit of anti-Christ.