2 Samuel 9:2-3

2And there was a servant of the house of Saul whose name was Ziba. So when they had called him to David, the king said to him, “Are you Ziba?” He said, “At your service!”

3Then the king said, “Is there not still someone of the house of Saul, to whom I may show the kindness of God?” And Ziba said to the king, “There is still a son of Jonathan who is lame in his feet.”