19Solomon also prepared the inner sanctuary within the temple to set the ark of the covenant of the LORD there.
20The inner sanctuary was twenty cubits long, twenty cubits wide, and twenty cubits high. He overlaid the inside with pure gold, and he also overlaid the altar of cedar.
21So Solomon overlaid the inside of the temple with pure gold, and he extended gold chains across the front of the inner sanctuary, which was overlaid with gold.
— 1 Kings 6:19-21