Exodus 28:31-35
31
"You shall make the robe of the ephod all of blue.
32
It shall have a hole for the head in its midst: 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.
33
On its hem you shall make pomegranates of blue, and of purple, and of scarlet, around its hem; and bells of gold between and around them:
34
a golden bell and a pomegranate, a golden bell and a pomegranate, around the hem of the robe.
35
It shall be on Aaron to minister: and its sound shall be heard when he goes in to the holy place before Yahweh, and when he comes out, that he not die.