'Thousand' in the Bible

returned to Joshua. "Not all of the people need to go up," they reported. "Only about two or three thousand men should attack Ai. Since they are so few, don't make all of the army work hard up there."

So about three thousand went up there, but they ran away from the men of Ai.

A single man makes a thousand flee, because the LORD your God is the one who is fighting for you, just as he promised you.