Exodus 28:30-32

New Revised Standard Version, Anglicised

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.

Other Priestly Vestments

³¹ You shall make the robe of the ephod all of blue. ³² It shall have an opening for the head in the middle of it, with a woven binding round the opening, like the opening in a coat of mail,^[a] so that it may not be torn.