Exodus 28:11

8 `And the girdle of his ephod which [is] on him, according to its work, is of the same, of gold, blue, and purple, and scarlet, and twined linen.

9 `And thou hast taken the two shoham stones, and hast opened on them the names of the sons of Israel;

10 six of their names on the one stone, and the names of the remaining six on the second stone, according to their births;

11 the work of an engraver in stone, openings of a signet, thou dost open the two stones by the names of the sons of Israel; turned round, embroidered [with] gold, thou dost make them.

12 `And thou hast set the two stones on the shoulders of the ephod -- stones of memorial to the sons of Israel -- and Aaron hath borne their names before Jehovah, on his two shoulders, for a memorial.

13 `And thou hast made embroidered things of gold,

14 and two chains of pure gold, wreathed work thou dost make them, work of thick bands, and thou hast put the thick chains on the embroidered things.