American Standard Version (ASV):
And it shall be that, when they enter in at the gates of the inner court, they shall be clothed with linen garments; and no wool shall come upon them, while they minister in the gates of the inner court, and within.
King James Version (KJV):
And it shall come to pass, [that] when they enter in at the gates of the inner court, they shall be clothed with linen garments; and no wool shall come upon them, whiles they minister in the gates of the inner court, and within.