'Linen' in the Bible

and I lifted up mine eyes and looked, and behold, a certain man clothed in linen, and his loins were girded with pure gold of Uphaz;

And he said to the man clothed in linen, who was above the waters of the river, How long is it to the end of these wonders?

And I heard the man clothed in linen, who was above the waters of the river; and he held up his right hand and his left hand unto the heavens, and swore by him that liveth for ever that it is for a time, times, and a half; and when the scattering of the power of the holy people shall be accomplished, all these things shall be finished.