Nehemiah 4:21-23

So we labored at the work, and half of them held the spears from the break of dawn until the stars came out. I also said to the people at that time, “Let every man and his servant pass the night within Jerusalem, that they may be a guard for us by night and may labor by day.” So neither I nor my brothers nor my servants nor the men of the guard who followed me, none of us took off our clothes; each kept his weapon at his right hand.