1 Kings 6:16-18

16And he built twenty cubits of the innermost part of the house, both floor and walls, with boards of cedar; and he built [them] for it within, to [be] the oracle, the most holy place.

17And the house, that is, the temple before it, was forty cubits [long].

18And the cedar of the house within was carved with colocynths and half-open flowers: all was cedar; there was no stone seen.