Breastplate of the High Priest
The breastplate was a piece of embroidery, about ten inches square, which the high priest wore on his chest. It was made of two pieces of the same right embroidered fabric of which the ephod was made, having a front and a lining, and forming a kind of purse or bag, in which the Urim and Thummin were enclosed. The front of it was set with twelve precious stones, on each of which was engraved the name of one of the tribes.
And thou shalt make a breastplate of judgment, the work of the skilful workman; like the work of the ephod thou shalt make it; of gold, of blue, and purple, and scarlet, and fine twined linen, shalt thou make it. Foursquare it shall be and double; a span shall be the length thereof, and a span the breadth thereof. And thou shalt set in it settings of stones, four rows of stones: a row of sardius, topaz, and carbuncle shall be the first row; and the second row an emerald, a sapphire, and a diamond; and the third row a jacinth, an agate, and an amethyst; and the fourth row a beryl, and an onyx, and a jasper: they shall be inclosed in gold in their settings. And the stones shall be according to the names of the children of Israel, twelve, according to their names; like the engravings of a signet, every one according to his name, they shall be for the twelve tribes. And thou shalt make upon the breastplate chains like cords, of wreathen work of pure gold. And thou shalt make upon the breastplate two rings of gold, and shalt put the two rings on the two ends of the breastplate. And thou shalt put the two wreathen chains of gold in the two rings at the ends of the breastplate. And the other two ends of the two wreathen chains thou shalt put on the two settings, and put them on the shoulder-pieces of the ephod in the forepart thereof. And thou shalt make two rings of gold, and thou shalt put them upon the two ends of the breastplate, upon the edge thereof, which is toward the side of the ephod inward. And thou shalt make two rings of gold, and shalt put them on the two shoulder-pieces of the ephod underneath, in the forepart thereof, close by the coupling thereof, above the skilfully woven band of the ephod. And they shall bind the breastplate by the rings thereof unto the rings of the ephod with a lace of blue, that it may be upon the skilfully woven band of the ephod, and that the breastplate be not loosed from the ephod. And Aaron shall bear the names of the children of Israel in the breastplate of judgment upon his heart, when he goeth in unto the holy place, for a memorial before Jehovah continually. And thou shalt put in the breastplate of judgment the Urim and the Thummim; and they shall be upon Aaron's heart, when he goeth in before Jehovah: and Aaron shall bear the judgment of the children of Israel upon his heart before Jehovah continually. Exodus 28:15-30