2 Chronicles 25:5

5 Amaziah called the people of Judah together and assigned them according to their families to commanders of thousands and commanders of hundreds for all Judah and Benjamin. He then mustered those twenty years old or more and found that there were three hundred thousand men fit for military service, able to handle the spear and shield.

Read 2 Chronicles 25:5 Using Other Translations

Moreover Amaziah gathered Judah together, and made them captains over thousands, and captains over hundreds, according to the houses of their fathers, throughout all Judah and Benjamin: and he numbered them from twenty years old and above, and found them three hundred thousand choice men, able to go forth to war, that could handle spear and shield.
Then Amaziah assembled the men of Judah and set them by fathers' houses under commanders of thousands and of hundreds for all Judah and Benjamin. He mustered those twenty years old and upward, and found that they were 300,000 choice men, fit for war, able to handle spear and shield.
Then Amaziah organized the army, assigning generals and captains for all Judah and Benjamin. He took a census and found that he had an army of 300,000 select troops, twenty years old and older, all trained in the use of spear and shield.