This is the list of the Israelites—heads of families, commanders of thousands and commanders of hundreds, and their officers, who served the king in all that concerned the army divisions that were on duty month by month throughout the year. Each division consisted of 24,000 men.
References for 1 Chronicles 27:1
In charge of the first division, for the first month, was Jashobeam son of Zabdiel. There were 24,000 men in his division.