Then he built the twenty-cubit room at the rear of the temple, from floor to ceiling, with cedar boards; he built it inside as the inner sanctuary, as the Most Holy Place.
1 Kings 6:16
Surrounding context
6:15 And he built the inside walls of the temple with cedar boards; from the floor of the temple to the ceiling he paneled the inside with wood; and he covered the floor of the temple with planks of cypress.
6:16 Then he built the twenty-cubit room at the rear of the temple, from floor to ceiling, with cedar boards; he built it inside as the inner sanctuary, as the Most Holy Place.
6:17 And in front of it the temple sanctuary was forty cubits long.