Exodus 39:29-31 New Living Translation (NLT)
29 The sashes were made of finely woven linen and embroidered with blue, purple, and scarlet thread, just as the Lord had commanded Moses.
30 Finally, they made the sacred medallion—the badge of holiness—of pure gold. They engraved it like a seal with these words: Holy to the lord. 31 They attached the medallion with a blue cord to Aaron’s turban, just as the Lord had commanded Moses.