What does wool signify in Ezekiel 44:17?

Why douldn't priests wear wool?

15 "But the Levitical priests, the sons of Zadok, who kept a the charge of my sanctuary when the people of Israel went astray from me, shall come near to me to minister to me. And they shall stand before me to offer me e the fat and the blood, declares the Lord God. ... 17 When they enter the gates of the inner court, they shall wear linen garments. They shall have nothing of wool on them, while they minister at the gates of the inner court, and within.” 

Ezekiel 44:15 - 31

ESV - ¹⁵ But the Levitical priests, the sons of Zadok, who kept the charge of my sanctuary when the people of Israel went astray from me, shall come near to me to minister to me. And they shall stand before me to offer me the fat and the blood, declares the Lord God. ¹⁶ They shall enter my sanctuary, and they shall approach my table, to minister to me, and they shall keep my charge.

Clarify • Share • Report • Asked October 16 2022 • Jack Gutknecht