en_tn/2ki/09/11.md

the servants of his master

This refers to the other officers who were serving King Ahab.

mad fellow

"crazy man"

You know the man and the kinds of things he says

Jehu says that he is a young prophet and they all are familiar with the kinds of things young prophets generally say. Alternate translation: "You know what kinds of things young prophets like him say"