40 Again the precise meaning of the Hebrew word, used only here in the OT, is uncertain. Since it is preceded by the verb “went out” and the next clause refers to Ehud closing doors, the noun is probably an architectural term referring to the room (perhaps a vestibule; see מִסְדְּרוֹן) immediately outside the king’s upper chamber. As v. 24 indicates, this vestibule separated the upper room from an outer room where the king’s servants were waiting.

In other versions

Then Ehud went out into the porch and closed the doors of the roof chamber behind him and locked them.

Then Ehud went out to the porch; he shut the doors of the upper room behind him and locked them.

Ehud escaped by way of the porch, closing and locking the doors of the upstairs room behind him.

Then Ehud closed and locked the doors of the room and escaped down the latrine.

And Ehud went out the vestibule, and he closed the doors of the upper room and locked them behind him.

Then Ehud went forth through the porch, and shut the doors of the parlour upon him, and locked them.

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