Exodus 28:29-30

29  a So Aaron shall bear the names of the sons of Israel in the breastpiece of judgment on his heart, when he goes into the Holy Place, to bring them to regular b remembrance before the  Lord. 30 And in the breastpiece of judgment c 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 judgment of the people of Israel on his heart before the  Lord regularly.

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