and, in the intricate mazes of scholastic theology, it was necessary to walk warily, for acute censorship could discover heresy in any unguarded expression. The great services rendered by Cardinal Morone and Cardinal Pole did not save them from the prosecuting zeal of Paul IV and Contarini and Sadoleto were both suspect of heresy.[148] Under such conditions a rambling inconsequential thinker like Carranza was peculiarly open to attack. He had unquestionably been more or less intimate with some of the prominent personages whose arrest for Lutheranism, in the spring of 1558, produced so immense a sensation. It was not unnatural that, on their trials, they should seek to shield themselves behind his honored name, but the detached fragments of conversation which were cited in support of vague general assertions, even if correctly reported, amount to nothing in the face of the emphatic testimony by Fray Domingo de Rojas, for the discharge of his conscience, a few hours before his execution, that he had never seen in Carranza anything that was not Catholic in regard to the Roman Church and all its councils, definitions and laws and that when Lutherans were alluded to he said their opinions were crafty and deceiving; they had sprung from hell and the incautious could easily be deceived by them.[149] The credence due to the evidence of the Lutherans, on which so much stress was laid, can be gauged by a subsequent case illustrative of the tendency to render Carranza responsible for all aberrations of belief. A certain Gil Tibobil (de Bonneville) on trial in 1564 for Lutheranism, in Toledo, sought to palliate his guilt by asserting that he had heard Carranza preach, in the church of San Agustin, against candles and images and that confession was to be made to God and not to the priest. This was too crude to be accepted and he was sternly told that it cast doubt on the rest of his confession for, if Carranza had thus preached publicly, it would have come to the knowledge of the Inquisition and he would have been punished.[150]