Exodus 28:22-29

22For the breastpiece, make braided chains like cords of pure gold. 23You are also to make two gold rings and fasten them to the two corners of the breastpiece. 24Then fasten the two gold chains to the two gold rings at the corners of the breastpiece, 25and fasten the other ends of the two chains to the two filigree settings, attaching them to the shoulder pieces of the ephod at the front.

26Make two more gold rings and attach them to the other two corners of the breastpiece, on the inside edge next to the ephod.

27Make two additional gold rings and attach them to the bottom of the two shoulder pieces of the ephod, on its front, near its seam just above its woven waistband. 28The rings of the breastpiece shall be tied to the rings of the ephod with a cord of blue yarn, so that the breastpiece is above the waistband of the ephod and does not swing out from the ephod.

29Whenever Aaron enters the Holy Place, he shall bear the names of the sons of Israel over his heart on the breastpiece of judgment, as a continual reminder before the LORD.