'Pure' in the Bible

“I kept lookingUntil thrones were set up,And the Ancient of Days took His seat;His vesture was like white snowAnd the hair of His head like pure wool.His throne was ablaze with flames,Its wheels were a burning fire.

I lifted my eyes and looked, and behold, there was a certain man dressed in linen, whose waist was girded with a belt of pure gold of Uphaz.

Some of those who have insight will fall, in order to refine, purge and make them pure until the end time; because it is still to come at the appointed time.