'Pure' in the Bible

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

I raised my eyes and looked, and behold, there was a certain man dressed in linen, whose loins were girded with [a belt of] pure gold of Uphaz.