'Locked' in the Bible

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

When Ehud had left, Eglon's servants came and saw the locked doors of the upper room. They said, "He must be relieving himself in the well-ventilated inner room."

There was a fortified tower in the center of the city, so all the men and women, as well as the city's leaders, ran into it and locked the entrance. Then they went up to the roof of the tower.