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From this direction given unto Joshua, we see that there was no such a thing as an audible voice here. Had this been the case, what need was there of so much trouble? The oracle could have said at once who the guilty person was, and to what tribe he belonged. We also see that the oracle was to be asked single questions ; and only single answers were to be expected, as the words of verse 14 show. The tribes were first to present themselves, and the oracle was to indicate the tribe to which the guilty person belonged. That tribe was then to present itself, and the oracle was to indicate the family of which the guilty person was a member. That family was then to present itself, and the oracle was to point out the guilty individual.
We shall now describe the nature and construction of that wonderful oracle, and the manner in which its answers were given. We have already seen how the breastplate of judgment was made like a four-square box, a span in length, and a span in breadth. Into the front of it were inserted twelve precious stones of different natures and colours. They were set in golden frames, and were fastened to the breastplate, and formed the splendid front of the same. On each of these twelve stones the name of one of the sons of Jacob was engraven in Hebrew letters. One bore the name " Reuben," the other " Simeon," and so on. The front of this breastplate which contained these gems was not very thick, and the breastplate itself was empty within. Into the inside of the breastplate the Lord commanded Moses to put the Urim and the Thummim. The Hebrew word " Urim " signifies "lights," or "illuminators." It was no more than a lamp, with twelve lights, put into the breastplate. Within, each light was directed towards one of the precious stones, by which means the brilliancy and lustre of the gems were heightened to a great degree. But all the letters of the Hebrew alphabet did not occur in the twelve names on the breastplate. These four, p, . t3- n- were wanting. To supply this defect Moses was directed to make another stone with these four letters on it. This stone was called "Thummim," which signifies "the com- pleters," or " the perfecters"; inasmuch as these four letters upon it completed the alphabet, and perfected the oracle for the purpose of giving answers. These lights and perfecters were put into the breastplate whenever the high priest had to enter the Most Holy, or when a matter of difficulty occurred in Church or State affairs. The Urim, or illuminating lights, were supplied with holy oil, and kindled with that sacred fire which came down from heaven upon the altar at the dedication of the tabernacle
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