'Thousand' in the Bible

yet there shall be a distance between you and it, about two thousand cubits by measure. Ye shall not come near it, that ye may know the way by which ye must go; for ye have not passed this way heretofore.

About forty thousand armed for military service passed over before Jehovah to the war, unto the plains of Jericho.

And they returned to Joshua, and said to him, Let not all the people go up; let about two or three thousand men go up and smite Ai; make not all the people to toil thither, for they are few.

And there went up thither of the people about three thousand men, but they fled before the men of Ai.

And Joshua arose, and all the people of war, to go up to Ai. And Joshua chose thirty thousand valiant men, and sent them away by night.

Now he had taken about five thousand men, and set them in ambush between Bethel and Ai, on the west of the city.

And so it was, that all who fell that day, men as well as women, were twelve thousand, all the people of Ai.

One man of you chaseth a thousand; for Jehovah your God, he it is that fighteth for you, as he hath said unto you.