Furbity began by asserting the authority of the pope. He maintained that the heads of the Church may ordain things that are not in Scripture, and to prove it, he quoted Deuteronomy: ‘If there arise a matter too hard for thee in judgment, thou shalt come unto the priests, and thou shalt observe to do according to all that they inform thee.’[451] Farel, on the contrary, maintained the authority of the Holy Scriptures, and declared that all doctrine must be founded on them alone. He called to mind that God, in this very book of Moses, had said: ‘_Ye shall not add unto the Word which I command you, neither shall you diminish aught from it_.’[452] ‘What is said of the Levitical priest in the Old Testament (he added) ought to be applied, not to the Romish priests, but to Jesus Christ, who is the everlasting high-priest. To him, therefore, we must go, him we must obey, and not the priest.’[453] ‘Christ,’ exclaimed Furbity, ‘gave to St. Peter the key of the kingdom of heaven, and St. Peter transmitted it to the priests, his successors.’ ‘The key of the heavenly kingdom,’ answered Farel, ‘is the Word of God. If any one believes in the promises of grace with all his heart, heaven opens for him. If any one rejects them, heaven is closed against him.’ As it was growing late, the discussion was adjourned to the next day, and Furbity said haughtily that he was ready. A voice from the midst of the crowd called out: ‘Endeavor to hold more to the Word of God and less to the teaching of the Sorbonne.’ ‘I shall behave like a man,’ he answered. ‘If the strength of a man consists in his want of sense, then you are a true man,’ rudely returned the speaker. The next day the discussion entered upon a new phase. [Sidenote: Interpretation By The Councils.]