1 Chronicles 27:1

27:1 Now the children of Israel after their number, the heads of fathers' [houses] and the captains of thousands and of hundreds, and their officers who served the king, in any matter of the divisions which came in and went out month by month throughout all the months of the year--of every division were twenty-four thousand.
-World English Bible

Other Translation

27:1 Now the children of Israel after their number, [to wit], the chief fathers and captains of thousands and hundreds, and their officers that served the king in any matter of the courses, which came in and went out month by month throughout all the months of the year, of every course [were] twenty and four thousand.
-King James Version