The words of Pope Benedict:
"Instead he remained with Jesus. He did not remain because of faith, or because of love, but with the secret intention of taking vengeance on the Master. Why? Because Judas felt betrayed by Jesus, and decided that he in turn would betray Him. Judas was a Zealot, and wanted a triumphant Messiah, who would lead a revolt against the Romans. [Fr. Z: "He wanted to reduce the Lord and His mission to the worldly."] Jesus had disappointed those expectations. The problem is that Judas did not go away, and his most serious fault was falsehood, which is the mark of the devil. This is why Jesus said to the Twelve: “One of you is a devil” (John 6.70). We pray to the Virgin Mary, help us to believe in Jesus, as St. Peter did, and to always be sincere with Him and with all people."Why do so many dissenters and revisionists presume to stay, I wonder?