29 And a girdle of fine twined linen, and blue, and purple, and scarlet, of needlework; as Yahweh commanded Moses.
All the Priesthood had to wear linen. They could wear no wool which represented the carnal and animal aspect. We read it was fine twined linen-actually it was fine linen, twined or twisted together; that is, in multiple threads, each tightly twisted together for strength-
"a threefold cord is not easily broken"
-many individual threads forming one piece, so finely woven together as to be indistinguishable as separate threads.
The ancient fine linen which they have found in tombs had up to 150 threads to the inch. No thread by itself; each twisted together tightly with its close companions for strength-a pure white, shining, righteous unity, made up of myriads of fine and firmly twisted and interwoven threads.
Bro Growcott - The court of the tabernacle