Exodus 28:12

9 You are to take two beryl stones, on which the names of the children of Israel are to be cut:

10 Six names on the one stone and six on the other, in the order of their birth.

11 With the work of a jeweller, like the cutting of a stamp, the names of the children of Israel are to be cut on them, and they are to be fixed in twisted frames of gold.

12 And the two stones are to be placed on the ephod, over the arm-holes, to be stones of memory for the children of Israel: Aaron will have their names on his arms when he goes in before the Lord, to keep the Lord in mind of them.

13 And you are to make twisted frames of gold;

14 And two chains of the best gold, twisted like cords; and have the chains fixed on to the frames.

15 And make a priest's bag for giving decisions, designed like the ephod, made of gold and blue and purple and red and the best linen.