Exodus 39:30-32

Young's Literal Translation

³⁰ And they make the flower of the holy crown of pure gold, and write on it a writing, openings of a signet, `Holy to Jehovah;'

³¹ and they put on it a ribbon of blue, to put [it] on the mitre above, as Jehovah hath commanded Moses.

³² And all the service of the tabernacle of the tent of meeting is completed; and the sons of Israel do according to all that Jehovah hath commanded Moses; so they have done.