Exodus 28:30-32

New International Version - UK

³⁰ Also 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.

Other priestly garments

³¹ ‘Make the robe of the ephod entirely of blue cloth, ³² with an opening for the head in its centre. There shall be a woven edge like a collar^[a] around this opening, so that it will not tear.