There remains then only the third view; and in support of it may be urged--in addition to the _conclusive_ fact just named--such considerations as these: 1. That their conceptions of God and of human duty are such as to satisfy the loftiest demands of the most enlightened reason and the best instructed conscience. Give examples (ch. xl. 12-26; lviii. 3-7, &c.) 2. That their conceptions of God and of human duty have not been surpassed by those of the sublimest poets or the ablest philosophers of any subsequent age. 3. That their sublime conceptions of God and of human duty, which still stand as the Alps or Himalaya of human thought, were given to the world in an age when, with the exception only of the prophets and those who accepted their teaching, the whole human race was given over to the most debasing idolatries and superstitions. 4. That the Hebrew prophets stood out in regard to these conceptions not only distinct from the men of their own age, but from the men of their own nation, from whom they had only words of rebuke, and against whose most cherished convictions and steadfast tendencies they set themselves in resolute opposition. Give examples (ch. i. 11-15; lxvi. 1, 2, &c.) If due weight be given to these considerations, we shall see that there is no escape from the conclusion that the Hebrew prophets owed their conceptions of God and duty to God Himself. They spake and wrote as they were moved by the Holy Ghost. If this be so, then--1. We should earnestly study the prophetic utterances. How mentally as well as morally debased is the man who is not alert and concerned to hear and understand what "the LORD hath spoken"! 2. Such of their utterances as are predictive should kindle within us confident and joyful hopes. They are the promises of Him who cannot lie, and who has ample power to perform. 3. To those which are preceptive we should give prompt, comprehensive, and careful obedience. To withhold such obedience, is to array against ourselves omnipotent power; to yield it, is to secure for ourselves eternal rewards (ch. iii. 10, 11). AN APPEAL AND AN ARGUMENT. i. 2, 3. _Hear, O heavens; and give ear, O earth: for the Lord hath spoken, I have nourished and brought up children, and they have rebelled against me. The ox knoweth his owner, and the ass his master's crib: but Israel doth not know, my people doth not consider._