Exodus 28:9-21
“ You are to take two onyx stones and engrave on them the names of the sons of Israel,six of their names on one stone, and the six remaining names on the second stone, according to the order of their birth.You are to engrave the two stones with the names of the sons of Israel with the work of an engraver in stone, like the engravings of a seal; you are to have them set in gold filigree settings.You are to put the two stones on the shoulders of the ephod, stones of memorial for the sons of Israel, and Aaron will bear their names before the LORD on his two shoulders for a memorial.You are to make filigree settings of goldand two braided chains of pure gold, like a cord, and attach the chains to the settings.“ You are to make a breastpiece for use in making decisions, the work of an artistic designer; you are to make it in the same fashion as the ephod; you are to make it of gold, blue, purple, scarlet, and fine twisted linen.It is to be square when doubled, nine inches long and nine inches wide.You are to set in it a setting for stones, four rows of stones, a row with a ruby, a topaz, and a beryl– the first row;and the second row, a turquoise, a sapphire, and an emerald;and the third row, a jacinth, an agate, and an amethyst;and the fourth row, a chrysolite, an onyx, and a jasper. They are to be enclosed in gold in their filigree settings.The stones are to be for the names of the sons of Israel, twelve, according to the number of their names. Each name according to the twelve tribes is to be like the engravings of a seal.