1 Kings 6:16-20

16He built twenty cubits of the rear of the house with boards of cedar from the floor to the walls, and he built this within as an inner sanctuary, as the Most Holy Place. 17The house, that is, the nave in front of the inner sanctuary, was forty cubits long. 18The cedar within the house was carved in the form of gourds and open flowers. All was cedar; no stone was seen. 19The inner sanctuary he prepared in the innermost part of the house, to set there the ark of the covenant of the LORD. 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.