Exodus 39:8-9 They fashioned the breastpiece—the work of a skilled craftsman. They made it like the ephod: of gold, and of blue, purple and scarlet yarn, and of finely twisted linen. It was square—a span long and a span wide—and folded double.
(At the Lord's instructions, the weavers create a breastpiece to hang over the vestment of the ephod garment of the high priest. About nine inches square, it would be crafted out of the same colors and fabrics as the ephod to, again, represent the divinity of Christ, blue for His royalty, red for His humanity, purple to depict His dual Nature, both God and Man, and the white linen into which all these colors were woven for His purity and holiness.
This garment piece of the high priest worn in his official duties
represents to us the truth that the Lord's intervention for us
is based in the strong and sure foundation of His unique Person,
as both intercessor and advocate for us,
as Savior and Lord Who has the power to forgive sin
