"The preacher himself was burning with religious passion. He felt deeply and he was a man of deep devotion. He had the eye of the mystic and saw beneath the external and ritual to the inner movements of spiritual power. The biblical element was also a conspicuous feature of his preaching. Defective as Savonarola's exegesis was, the biblical element was everywhere in control of his thought and descriptions. … He insisted upon the authority of Scripture. "I preach the regeneration of the Church," he said, "taking the Scriptures as my sole guide.""