'Pure' in the Bible

In front, the inner sanctuary [was] twenty cubits long and twenty cubits wide and twenty cubits high, and he overlaid it [with] pure gold and covered the altar [with] cedar.

Solomon overlaid the temple on the inside [with] pure gold, and he drew across it with golden chains in front of the inner sanctuary, which he overlaid with gold.

All of the drinking vessels of King Solomon [were] gold, and all the vessels for the House of the Forest of Lebanon were pure gold. There was no silver; [it was] not considered as something valuable in the days of Solomon.