But again Jeremiah was willing to reconsider his position, not merely because he himself might have been mistaken, but because altered circumstances might have opened the way for a change in God's dealings. It was a bare possibility, but we have seen elsewhere that Jeremiah represents God as willing to make a gracious response to the first movement of compunction. Prophecy was the declaration of His will, and that will was not arbitrary, but at every moment and at every point exactly adapted to conditions with which it had to deal. Its principles were unchangeable and eternal; but prophecy was chiefly an application of these principles to existing circumstances. The true prophet always realised that his words were for men as they were when he addressed them. Any moment might bring a change which would abrogate or modify the old teaching, and require and receive a new message. Like Jonah, he might have to proclaim ruin one day and deliverance the next. A physician, even after the most careful diagnosis, may have to recognise unsuspected symptoms which lead him to cancel his prescription and write a new one. The sickening and healing of the soul involve changes equally unexpected. The Bible does not teach that inspiration, any more than science, has only one treatment for each and every spiritual condition and contingency. The true prophet's message is always a word in season. We turn next to the objective question: How is the hearer to decide between conflicting claims on his faith and obedience? We say the right was with Jeremiah; but how were the Jews to know that? They were addressed by two prophets, or, as we might say, two accredited ecclesiastics of the national Church; each with apparent earnestness and sincerity claimed to speak in the name of Jehovah and of the ancient faith of Israel, and each flatly contradicted the other on an immediate practical question, on which hung their individual fortunes and the destinies of their country. What were the Jews to do? Which were they to believe? It is the standing difficulty of all appeals to external authority. You inquire of this supposed divine oracle and there issues from it a babel of discordant voices, and each demands that you shall unhesitatingly submit to its dictates on peril of eternal damnation; and some have the audacity to claim obedience, because their teaching is "_quod semper_, _quod ubique_, _quod ab omnibus_."