1 Kings 6:20-22

20The inner sanctuary was twenty cubits long, twenty cubits wide, and twenty cubits high, and he overlaid it with pure gold. He also overlaid an altar of cedar.

21And Solomon overlaid the inside of the house with pure gold, and he drew chains of gold across, in front of the inner sanctuary, and overlaid it with gold.

22And he overlaid the whole house with gold, until all the house was finished. Also the whole altar that belonged to the inner sanctuary he overlaid with gold.