Exodus 28:30-32

Amplified Bible, Classic Edition

³⁰ In the breastplate of judgment you shall put the Urim and the Thummim [unspecified articles used when the high priest asked God’s counsel for all Israel]; they shall be upon Aaron’s heart when he goes in before the Lord, and Aaron shall bear the judgment (rights, judicial decisions) of the Israelites upon his heart before the Lord continually.

³¹ Make the robe [to be worn beneath] the ephod all of blue.

³² There shall be a hole in the center of it [to slip over the head], with a binding of woven work around the hole, like the opening in a coat of mail or a garment, that it may not fray or tear.