1 Chronicles 27:4 (KJV)

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.

Over the first course for the first month was Jashobeam the son of Zabdiel: and in his course were twenty and four thousand.

Of the children of Perez was the chief of all the captains of the host for the first month.

The third captain of the host for the third month was Benaiah the son of Jehoiada, a chief priest: and in his course were twenty and four thousand.

This is that Benaiah, who was mighty among the thirty, and above the thirty: and in his course was Ammizabad his son.

The fourth captain for the fourth month was Asahel the brother of Joab, and Zebadiah his son after him: and in his course were twenty and four thousand.

The fifth captain for the fifth month was Shamhuth the Izrahite: and in his course were twenty and four thousand.

The sixth captain for the sixth month was Ira the son of Ikkesh the Tekoite: and in his course were twenty and four thousand.