Shemot 39:7-9

Orthodox Jewish Bible

⁷ And he fastened them upon the Kitfot HaEphod, that they should be Avnei Zikaron (Memorial Stones) unto the Bnei Yisroel; as Hashem commanded Moshe.

⁸ And he made the Choshen of artistic weaver’s work, like the workmanship of the Ephod; of zahav, turquoise, and purple, and scarlet wool, and fine twisted linen.

⁹ It was ravu’a (square); they made the Choshen folded double; a span was the length thereof, and a span the width thereof, being doubled.