2 Chronicles 3:8

Then he made the Most Holy Place; its length corresponded to the width of the temple—twenty cubits long and twenty cubits wide. And he overlaid the inside with six hundred talents of fine gold.

Note Or the Holy of Holies; also in verse 10

Note 600 talents is approximately 22.6 tons or 20.5 metric tons of gold.

And he made the most holy house, the length whereof was according to the breadth of the house, twenty cubits, and the breadth thereof twenty cubits: and he overlaid it with fine gold, amounting to six hundred talents.

He made the most holy place. Its length, according to the width of the house, was twenty cubits, and its width twenty cubits; and he overlaid it with fine gold, amounting to six hundred talents.

Note A talent is about 30 kilograms or 66 pounds or 965 Troy ounces, so 600 talents is about 18 metric tons

And he made the most holy house: the length thereof, according to the breadth of the house, was twenty cubits, and the breadth thereof twenty cubits; and he overlaid it with fine gold, amounting to six hundred talents.