It is to be square and doubled over, a span in length and a span in width.
“Make a breastplate of judgment, the work of a skillful craftsman. You are to make it like the design of the ephod—of gold, blue, purple, scarlet and finely twisted linen.
Set within it four rows of jewels: a row of ruby, topaz and emerald for the first row;
They mounted within it four rows of stones. A row of ruby, topaz and emerald were the first row.