The UB covers all the major prophets as the authors were on earth when they were.
97:1.1 "Hostile pressure of the surrounding peoples in Palestine soon taught the Hebrew sheiks they could not hope to survive unless they confederated their tribal organizations into a centralized government. And this centralization of administrative authority afforded a better opportunity for Samuel to function as a teacher and reformer.
97:1.2 Samuel sprang from a long line of the Salem teachers who had persisted in maintaining the truths of Melchizedek as a part of their worship forms. This teacher was a virile and resolute man. Only his great devotion, coupled with his extraordinary determination, enabled him to withstand the almost universal opposition which he encountered when he started out to turn all Israel back to the worship of the supreme Yahweh of Mosaic times. And even then he was only partially successful; he won back to the service of the higher concept of Yahweh only the more intelligent half of the Hebrews; the other half continued in the worship of the tribal gods of the country and in the baser conception of Yahweh.
97:1.3 Samuel was a rough-and-ready type of man, a practical reformer who could go out in one day with his associates and overthrow a score of Baal sites. The progress he made was by sheer force of compulsion; he did little preaching, less teaching, but he did act. One day he was mocking the priest of Baal; the next, chopping in pieces a captive king. He devotedly believed in the one God, and he had a clear concept of that one God as creator of heaven and earth:" The pillars of the earth are the Lord's, and he has set the world upon them."
97:1.4 But the great contribution which Samuel made to the development of the concept of Deity was his ringing pronouncement that Yahweh was changeless, forever the same embodiment of unerring perfection and divinity. In these times Yahweh was conceived to be a fitful God of jealous whims, always regretting that he had done thus and so; but now, for the first time since the Hebrews sallied forth from Egypt, they heard these startling words, "The Strength of Israel will not lie nor repent, for he is not a man, that he should repent." Stability in dealing with Divinity was proclaimed. Samuel reiterated the Melchizedek covenant with Abraham and declared that the Lord God of Israel was the source of all truth, stability, and constancy. Always had the Hebrews looked upon their God as a man, a superman, an exalted spirit of unknown origin; but now they heard the onetime spirit of Horeb exalted as an unchanging God of creator perfection. Samuel was aiding the evolving God concept to ascend to heights above the changing state of men's minds and the vicissitudes of mortal existence. Under his teaching, the God of the Hebrews was beginning the ascent from an idea on the order of the tribal gods to the ideal of an all-powerful and changeless Creator and Supervisor of all creation."....
http://truthbook.com/urantia-book/paper-97-evolution-of-the-god-concept-among-the-hebrews
Presented by a Melchizedek of Nebadon.
SAMUEL—FIRST OF THE HEBREW PROPHETS
97:1.1 "Hostile pressure of the surrounding peoples in Palestine soon taught the Hebrew sheiks they could not hope to survive unless they confederated their tribal organizations into a centralized government. And this centralization of administrative authority afforded a better opportunity for Samuel to function as a teacher and reformer.
97:1.2 Samuel sprang from a long line of the Salem teachers who had persisted in maintaining the truths of Melchizedek as a part of their worship forms. This teacher was a virile and resolute man. Only his great devotion, coupled with his extraordinary determination, enabled him to withstand the almost universal opposition which he encountered when he started out to turn all Israel back to the worship of the supreme Yahweh of Mosaic times. And even then he was only partially successful; he won back to the service of the higher concept of Yahweh only the more intelligent half of the Hebrews; the other half continued in the worship of the tribal gods of the country and in the baser conception of Yahweh.
97:1.3 Samuel was a rough-and-ready type of man, a practical reformer who could go out in one day with his associates and overthrow a score of Baal sites. The progress he made was by sheer force of compulsion; he did little preaching, less teaching, but he did act. One day he was mocking the priest of Baal; the next, chopping in pieces a captive king. He devotedly believed in the one God, and he had a clear concept of that one God as creator of heaven and earth:" The pillars of the earth are the Lord's, and he has set the world upon them."
97:1.4 But the great contribution which Samuel made to the development of the concept of Deity was his ringing pronouncement that Yahweh was changeless, forever the same embodiment of unerring perfection and divinity. In these times Yahweh was conceived to be a fitful God of jealous whims, always regretting that he had done thus and so; but now, for the first time since the Hebrews sallied forth from Egypt, they heard these startling words, "The Strength of Israel will not lie nor repent, for he is not a man, that he should repent." Stability in dealing with Divinity was proclaimed. Samuel reiterated the Melchizedek covenant with Abraham and declared that the Lord God of Israel was the source of all truth, stability, and constancy. Always had the Hebrews looked upon their God as a man, a superman, an exalted spirit of unknown origin; but now they heard the onetime spirit of Horeb exalted as an unchanging God of creator perfection. Samuel was aiding the evolving God concept to ascend to heights above the changing state of men's minds and the vicissitudes of mortal existence. Under his teaching, the God of the Hebrews was beginning the ascent from an idea on the order of the tribal gods to the ideal of an all-powerful and changeless Creator and Supervisor of all creation."....
http://truthbook.com/urantia-book/paper-97-evolution-of-the-god-concept-among-the-hebrews