Exodus 28:28-30

New Revised Standard Version, Anglicised Catholic Edition

²⁸ The breastpiece shall be bound by its rings to the rings of the ephod with a blue cord, so that it may lie on the decorated band of the ephod, and so that the breastpiece shall not come loose from the ephod. ²⁹ So Aaron shall bear the names of the sons of Israel in the breastpiece of judgement on his heart when he goes into the holy place, for a continual remembrance before the Lord. ³⁰ In the breastpiece of judgement you shall put the Urim and the Thummim, and they shall be on Aaron’s heart when he goes in before the Lord; thus Aaron shall bear the judgement of the Israelites on his heart before the Lord continually.