Ezekiel 44:15

44:15 But the priests the Levites, the sons of Zadok, that kept the charge of my sanctuary when the children of Israel went astray from me, they shall come near to me to minister unto me, and they shall stand before me to offer unto me the fat and the blood, saith the Lord GOD:

Ezekiel 44:18

44:18 They shall have linen bonnets upon their heads, and shall have linen breeches upon their loins; they shall not gird [themselves] with any thing that causeth sweat.