'Thousand' in the Bible

Then they returned to Joshua and said to him, “Do not make all the people go up [to fight]; have only about two thousand or three thousand men go up and attack Ai; do not make the entire army go up there, for they [of Ai] are few.”

So about three thousand men from the sons of Israel went up there, but they fled [in retreat] from the men of Ai.

So Joshua set out with all the people of war to go up against Ai; then Joshua chose thirty thousand valiant men, and sent them out at night.

And Joshua took about five thousand men and set them in ambush between Bethel and Ai, on the west side of the city.

And all who fell that day, both men and women, were twelve thousand, all the people of Ai.

One of your men puts to flight a thousand, for the Lord your God is He who is fighting for you, just as He promised you.