en_tn/1ki/20/16.md

They went out

Here the word "They" refers to the Israelite army.

thirty-two lesser kings

See how you translated this in 1 Kings 20:1.

Ben Hadad was informed by scouts that he had sent out

This can be expressed in active form. AT: "Scouts that Ben Hadad had sent out informed him" (See: rc://en/ta/man/translate/figs-activepassive)

scouts

A "scout" is a soldier sent to gather information about the enemy.