Nehemiah 4:11-13

And our adversaries said, They shall not know, neither see, till we come into the midst of them, and slay them, and cause the work to cease. And it came to pass that, when the Jews that dwelt by them came, they said unto us ten times from all places, Ye must return unto us. Therefore set I in the lowest parts of the space behind the wall, in the open places, I set there the people after their families with their swords, their spears, and their bows.