Exodus 28:31

29Aaron shall bear the names of the children of Israel in the breastplate of judgment on his heart, when he goes in to the holy place, for a memorial before the LORD continually.

30You shall put in the breastplate of judgment the Urim and the Thummim; and they shall be on Aaron’s heart, when he goes in before the LORD. Aaron shall bear the judgment of the children of Israel on his heart before the LORD continually.

31“You shall make the robe of the ephod all of blue.

32It shall have a hole for the head in the middle of it. It shall have a binding of woven work around its hole, as it were the hole of a coat of mail, that it not be torn.

33On its hem you shall make pomegranates of blue, and of purple, and of scarlet, all around its hem; with bells of gold between and around them: