'Kings' in the Bible

Now these are the kings that reigned in the land of Edom before any king reigned 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 were written in the book of the kings of Israel and Judah, who were carried away 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 before the gate of the city: and the kings that were come were by themselves in the field.

And it came to pass, that after the year was expired, at the time that kings go out to battle, Joab led forth the power of 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 destroyed it.