The priest who inquires of the Lord by Urim has a higher place under Joshua's administration than under that of Moses. The theocracy will henceforth have a twofold manifestation, less of unity than before. And here the change is of a kind which may involve the gravest consequences. The simple statement of ver. 12 denotes a very great limitation of Joshua's authority as leader. It means that though on many occasions he can both originate and execute, all matters of moment shall have to be referred to the oracle. There will be a possibility of conflict between him and the priest with regard to the occasions that require such a reference to Jehovah. In addition there may be the uncertainty of responses through the Urim, as interpreted by the priest. It is easy also to see that by this method of appealing to Jehovah the door was opened to abuses which, if not in Joshua's time, certainly in the time of the judges, began to arise.
It may appear to some absolutely necessary to refer the Urim to a far later date. The explanation given by Ewald, that the inquiry was always by some definite question, and that the answer was found by means of the lot, obviates this difficulty.[12] The Urim and Thummim, which mean "clearness and correctness," or as in our passage the Urim alone, may have been pebbles of different colours, the one representing an affirmative, the other a negative reply. But inquiry appears to have been made by these means after certain rites, and with forms which the priest alone could use. It is evident that absolute sincerity on his part, and unswerving loyalty to Jehovah, were an important element in the whole administration of affairs. A priest who became dissatisfied with the leader might easily frustrate his plans. On the other hand, a leader dissatisfied with the responses would be tempted to suspect and perhaps set aside the priest. There can be no doubt that here a serious possibility of divided counsels entered into the history of Israel, and we are reminded of many after events. Yet the circumstances were such that the whole power could not be committed to one man. With whatever element of danger, the new order had to begin.
Moses laid his hands on Joshua and gave him his charge. As one who knew his own infirmities, he could warn the new chief of the temptations he would have to resist, the patience he would have to exercise. It was not necessary to inform Joshua of the duties of his office. With these he had become familiar. But the need for calm and sober judgment required to be impressed upon him. It was here he was defective, and here that his "honour" and the maintenance of his authority would have to be secured. Deuteronomy mentions only the exhortation Moses gave to be strong and of a good courage, and the assurance that Jehovah would go before Joshua, would neither fail him nor forsake him. But though much is recorded, much also remains untold. An education of forty years had prepared Joshua for the hour of his investiture. Yet the words of the chief he was so soon to lose must have had no small part in preparing him for the burden and duty which he was now called by Jehovah to sustain as leader of Israel.