2 Chronicles 22:1

1 And the people of Jerusalem made Ahaziah, his youngest son, king in his place, for the band of men who came with the Arabians to the army had put all the older sons to death. So Ahaziah, the son of Jehoram, became king.

2 Chronicles 22:1 Meaning and Commentary

2 Chronicles 22:1

And the inhabitants of Jerusalem made Ahaziah his youngest
son king in his stead
He being the only surviving one of the sons of Jehoram, the same with Jehoahaz, ( 2 Chronicles 21:17 ) who was saved when the rest were taken captive and slain, by his mother Athaliah, and he made his escape, and that she also escaped is clear from ( 2 Chronicles 22:10 )

for the band of men that came with the Arabians to the camp;
that is, of the Philistines, ( 2 Chronicles 21:16 ) , which band seems to be a band or company of thieves and robbers, as the Septuagint, cruel and barbarous, as the action ascribed to them shows:

[for they] had slain all the eldest;
sons of Jehoram; the Philistines and Arabians only carried them away captives, but those slew them in cold blood:

so Ahaziah the son of Jehoram king of Judah reigned;
being declared his successor by the inhabitants of Jerusalem.

2 Chronicles 22:1 In-Context

1 And the people of Jerusalem made Ahaziah, his youngest son, king in his place, for the band of men who came with the Arabians to the army had put all the older sons to death. So Ahaziah, the son of Jehoram, became king.

2 Ahaziah was twenty-two years old when he became king, and he was ruling in Jerusalem for one year. His mother's name was Athaliah, the daughter of Omri.

3 He went in the ways of the family of Ahab, for his mother was his teacher in evil-doing.

4 And he did evil in the eyes of the Lord, as the family of Ahab did; for after the death of his father they were his guides to his destruction.

5 Acting on their suggestion, he went with Jehoram, son of Ahab, king of Israel, to make war on Hazael, king of Aram, at Ramoth-gilead: and Joram was wounded by the bowmen.