5 Moreover Amaziah gathered Judah together, and ordered them according to their fathers’ houses, under captains of thousands and captains of hundreds, even all Judah and Benjamin. He counted them from twenty years old and upward, and found that there were three hundred thousand chosen men, able to go out to war, who could handle spear and shield.
2 Chronicles 25:5 Cross References - WEB
Exodus 18:25
25 Moses chose able men out of all Israel, and made them heads over the people, rulers of thousands, rulers of hundreds, rulers of fifties, and rulers of tens.
Numbers 1:3
3 from twenty years old and upward, all who are able to go out to war in Israel. You and Aaron shall count them by their divisions.
1 Samuel 8:12
12 He will appoint them to him for captains of thousands and captains of fifties; and he will assign some to plow his ground and to reap his harvest; and to make his instruments of war and the instruments of his chariots.
1 Chronicles 13:1
1 David consulted with the captains of thousands and of hundreds, even with every leader.
1 Chronicles 27:1
1 Now the children of Israel after their number, the heads of fathers’ households 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.
2 Chronicles 11:1
1 When Rehoboam had come to Jerusalem, he assembled the house of Judah and Benjamin, one hundred eighty thousand chosen men who were warriors, to fight against Israel, to bring the kingdom again to Rehoboam.
2 Chronicles 14:8
8 Asa had an army of three hundred thousand out of Judah who bore bucklers and spears, and two hundred eighty thousand out of Benjamin who bore shields and drew bows. All these were mighty men of valor.
2 Chronicles 17:14-18
14 This was the numbering of them according to their fathers’ houses: From Judah, the captains of thousands: Adnah the captain, and with him three hundred thousand mighty men of valor;
15 and next to him Jehohanan the captain, and with him two hundred eighty thousand;
16 and next to him Amasiah the son of Zichri, who willingly offered himself to Yahweh, and with him two hundred thousand mighty men of valor.
17 From Benjamin: Eliada, a mighty man of valor, and with him two hundred thousand armed with bow and shield;
18 and next to him Jehozabad, and with him one hundred eighty thousand ready and prepared for war.
2 Chronicles 26:13
13 Under their hand was an army, three hundred seven thousand five hundred, who made war with mighty power, to help the king against the enemy.