2 Chronicles 22:1

1 And the inhabitants of Jerusalem made Ahaziah, his youngest son, king in his stead; for the band of men that came with the Arabians to the camp had slain all the elder sons. So Ahaziah the son of Jehoram, king of Judah reigned.

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 inhabitants of Jerusalem made Ahaziah, his youngest son, king in his stead; for the band of men that came with the Arabians to the camp had slain all the elder sons. So Ahaziah the son of Jehoram, king of Judah reigned.

2 Ahaziah was forty-two years old {another text: twenty-two} when he began to reign, and he reigned one year in Jerusalem. His mother’s name was Athaliah, the daughter of Omri.

3 He also walked in the ways of the house of Ahab, for his mother was his counsellor to do wickedly.

4 Therefore, he did evil in the sight of the LORD like the house of Ahab, for they were his counsellors, after the death of his father, to his destruction.

5 And He walked after their counsel and went with Jehoram, the son of Ahab, king of Israel, to war against Hazael, king of Syria at Ramothgilead, where the Syrians smote Joram.