2 Chronicles 22:1

1 The inhabitants of Jerusalem made his youngest son Ahaziah succeed him as king because the raiding party that had invaded the camp with the Arabs had killed all the older sons. So Ahaziah, Jehoram's son, became king of Judah.

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 The inhabitants of Jerusalem made his youngest son Ahaziah succeed him as king because the raiding party that had invaded the camp with the Arabs had killed all the older sons. So Ahaziah, Jehoram's son, became king of Judah.

2 Ahaziah was 22 years old when he became king, and he ruled for one year in Jerusalem. His mother's name was Athaliah; she was the granddaughter of Omri.

3 Ahaziah walked in the ways of Ahab's dynasty, encouraged in this wickedness by his mother.

4 He did what was evil in the LORD's eyes, just as Ahab's dynasty had done, because after his father's death they gave him advice that led to his downfall.

5 Ahaziah was following their advice when he went with Israel's King Joram, Ahab's son, to fight against Aram's King Hazael at Ramoth-gilead, where the Arameans wounded Joram.