Exodus 28:22-28

“Then make braided chains of pure gold for the Breastpiece, like cords. Make two rings of gold for the Breastpiece and fasten them to the two ends. Fasten the two golden cords to the rings at the ends of the Breastpiece. Then fasten the other ends of the two cords to the two settings of filigree, attaching them to the shoulder pieces of the Ephod in front. Then make two rings of gold and fasten them to the two ends of the Breastpiece on its inside edge facing the Ephod. Then make two more rings of gold and fasten them in the front of the Ephod to the lower part of the two shoulder pieces, near the seam above the decorated band. Fasten the Breastpiece in place by running a cord of blue through its rings to the rings of the Ephod so that it rests secure on the decorated band of the Ephod and won’t come loose.