'Kings' in the Bible

Now these are the kings that reigned in the land of Edom, before there resigned any king over the children of Israel: Bela the son of Beor; and the name of his city was Dinhabah.

So all Israel were reckoned by genealogies; and, behold, they are written in the book of the kings of Israel: and Judah was carried away captive to Babylon for their transgression.

He suffered no man to do them wrong; Yea, he reproved kings for their sakes,

And the children of Ammon came out, and put the battle in array at the gate of the city: and the kings that were come were by themselves in the field.

And it came to pass, at the time of the return of the year, at the time when kings go out to battle , that Joab led forth the army, and wasted the country of the children of Ammon, and came and besieged Rabbah. But David tarried at Jerusalem. And Joab smote Rabbah, and overthrew it.