1 Kings 6:20-22

20And within the oracle was a space of twenty cubits in length, and twenty cubits in breadth, and twenty cubits in the height thereof; and he overlaid it with pure gold: and he covered the altar with cedar. 21So Solomon overlaid the house within with pure gold: and he drew chains of gold across before the oracle; and he overlaid it with gold. 22And the whole house he overlaid with gold, until all the house was finished: also the whole altar that belonged to the oracle he overlaid with gold.