Exodus 28:21-23

Revised Standard Version

²¹ There shall be twelve stones with their names according to the names of the sons of Israel; they shall be like signets, each engraved with its name, for the twelve tribes. ²² And you shall make for the breastpiece twisted chains like cords, of pure gold; ²³ and you shall make for the breastpiece two rings of gold, and put the two rings on the two edges of the breastpiece.