Exodus 39:31-33

Amplified Bible

³¹ They tied a blue cord to it, to fasten it on the turban above, just as the Lord commanded Moses.

³² Thus all the work of the tabernacle of the Tent of Meeting was finished; and the Israelites did according to all that the Lord had commanded Moses; that is what they did. ³³ They brought the tabernacle to Moses [for him to inspect]: the tent and all its furnishings, its hooks, its [frame] boards, its bars, its support poles, its sockets or bases;