Albert Barnes Commentary 1 Kings 22:26

"And the king of Israel said, Take Micaiah, and carry him back unto Amon the governor of the city, and to Joash the king`s son;" — 1 Kings 22:26 (ASV)

Carry him back - This literally means “cause him to return.” Micaiah had been in custody before and was brought by Ahab’s messenger from his prison.

The governor of the city - This is one of several details concerning what may be called the “constitution” of the Israelite kingdom. The king consulted a council of elders on important matters (1 Kings 20:7–8).

The general administration was carried on by governors of provinces (1 Kings 20:14) and of cities (2 Kings 10:5). These city governors, like the monarch, were assisted and checked by councils of elders—the wise men of their respective towns (1 Kings 21:8–12; 2 Kings 10:5).

Thus, as we see from this passage, Samaria was under a special governor who, among his other duties, controlled the public prison and directed the treatment of the prisoners.

The king’s son - The phrase seems to designate a state office rather than a relationship to the sovereign (Compare to 2 Chronicles 28:7).