'Upper Room' in the Bible

And Ehud came to him. And he was sitting by himself alone in the cool upper room. And Ehud said, I have a message from God to thee. And he arose out of his seat.

Then Ehud went forth into the porch, and shut the doors of the upper room upon him, and locked them.

Now when he was gone out, his servants came, and they saw, and, behold, the doors of the upper room were locked. And they said, Surely he is covering his feet in the upper chamber.

And they delayed till they were ashamed, and, behold, he did not open the doors of the upper room. Therefore they took the key, and opened, and, behold, their lord was fallen down dead on the earth.