Exodus 39:28-30 Holman Christian Standard Bible (HCSB)
28 They also made the turban and the ornate headbands[a] of fine linen, the undergarments, 29 and the sash of finely spun linen of embroidered blue, purple, and scarlet yarn. They did just as the Lord had commanded Moses.
Making the Holy Diadem
30 They also made a medallion, the holy diadem, out of pure gold and wrote on it an inscription like the engraving on a seal:
HOLY TO THE LORD.