'Kings' in the Bible

When all the kings, the servants of Hadadezer, saw that he had been defeated before Israel, they made peace with Israel and served them, and Aram [was] afraid to help the {Ammonites} any longer.

{It came about in the spring}, at the time {kings} go out, David sent Joab and his servants with him and all of Israel. They ravaged all of the {Ammonites} and besieged Rabbah, but David [was] remaining in Jerusalem.