P388:4, 35:4.1 A highly specialized branch of Melchizedek activities has to do with the supervision of the progressive morontia career of the ascending mortals. Much of this training is conducted by the patient and wise seraphic ministers, assisted by mortals who have ascended to relatively higher levels of universe attainment, but all of this educational work is under the general supervision of the Melchizedeks in association with the Trinity Teacher Sons.
P389:1, 35:4.2 While the Melchizedek orders are chiefly devoted to the vast educational system and experiential training regime of the local universe, they also function in unique assignments and in unusual circumstances. In an evolving universe eventually embracing approximately ten million inhabited worlds, many things out of the ordinary are destined to happen, and it is in such emergencies that the Melchizedeks act. On Edentia, your constellation headquarters, they are known as emergency Sons. They are always ready to serve in all exigencies -- physical, intellectual, or spiritual -- whether on a planet, in a system, in a constellation, or in the universe. Whenever and wherever special help is needed, there you will find one or more of the Melchizedek Sons.
P389:2, 35:4.3 When failure of some feature of the Creator Son's plan is threatened, forthwith will go a Melchizedek to render assistance. But not often are they summoned to function in the presence of sinful rebellion, such as occurred in Satania.
P389:3, 35:4.4 The Melchizedeks are the first to act in all emergencies of whatever nature on all worlds where will creatures dwell. They sometimes act as temporary custodians on wayward planets, serving as receivers of a defaulting planetary government. In a planetary crisis these Melchizedek Sons serve in many unique capacities. It is easily possible for such a Son to make himself visible to mortal beings, and sometimes one of this order has even incarnated in the likeness of mortal flesh. Seven times in Nebadon has a Melchizedek served on an evolutionary world in the similitude of mortal flesh, and on numerous occasions these Sons have appeared in the likeness of other orders of universe creatures. They are indeed the versatile and volunteer emergency ministers to all orders of universe intelligences and to all the worlds and systems of worlds.
P389:4, 35:4.5 The Melchizedek who lived on Urantia during the time of Abraham was locally known as Prince of Salem because he presided over a small colony of truth seekers residing at a place called Salem. He volunteered to incarnate in the likeness of mortal flesh and did so with the approval of the Melchizedek receivers of the planet, who feared that the light of life would become extinguished during that period of increasing spiritual darkness. And he did foster the truth of his day and safely pass it on to Abraham and his associates.