Exodus 28:26-32

26Make two gold rings and attach them to the other two corners of the breastpiece on the inside edge next to the ephod. 27Make two more gold rings and attach them to the bottom of the shoulder pieces on the front of the ephod, close to the seam just above the waistband of the ephod. 28The rings of the breastpiece are to be tied to the rings of the ephod with blue cord, connecting it to the waistband, so that the breastpiece will not swing out from the ephod. 29“Whenever Aaron enters the Holy Place, he will bear the names of the sons of Israel over his heart on the breastpiece of decision as a continuing memorial before the Lord. 30Also put the Urim and the Thummim in the breastpiece, so they may be over Aaron’s heart whenever he enters the presence of the Lord. Thus Aaron will always bear the means of making decisions for the Israelites over his heart before the Lord. 31“Make the robe of the ephod entirely of blue cloth, 32with an opening for the head in its center. There shall be a woven edge like a collar around this opening, so that it will not tear.