Exodus 28:15
Prepare the breast piece for decision-making using a skilled craftsman. Make it like the ephod out of gold, violet, purple, and bright red yarn and out of fine linen yarn.
Exodus 26:1
Construct the tabernacle with ten curtains of fine twisted linen and blue and purple and scarlet material. Make them with cherubim, the work of a skillful workman.
Exodus 28:4
The clothes they will make are as follows: a breastplate, an ephod and the robe that is worn with it, another specially woven linen robe, the chief priest's turban, and a cloth belt. They will make these holy clothes for your brother Aaron and his sons so that they will be able to serve me as priests.
Exodus 28:6
prepare the ephod with fine linen yarn. Embroider gold, violet, purple, and bright red yarn into the fabric.
Exodus 28:30
Put the Urim and Thummim into the breast piece for decision-making. They, too, will be over Aaron's heart when he comes into Jehovah's presence. In this way when he is in Jehovah's presence, Aaron will always be carrying over his heart the means for determining Jehovah's decisions for the Israelites.
Exodus 39:8-21
The breast piece was made of the same materials as the ephod and with similar embroidery.
Leviticus 8:8
Then he placed the breastplate on him and he placed the Urim and Thummim.