2 Chronicles 25:5

Moreover, Amaziah gathered Judah together, mustering its strength for service in war, and made them captains over thousands and captains over hundreds, according to the houses of their fathers, by the divisions of the tribe known as father-houses, throughout all Judah and Benjamin; and he numbered them from twenty years old and above, and found them three hundred thousand choice men, veteran soldiers, a much smaller number than at the time of Jehoshaphat; some eighty years before, able to go forth to war, that could handle spear and shield.