Exodus 28:28-29

New International Version

²⁸ The 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,^(A) 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.