2 Samuel 9:2-6

Now there was a servant of the house of Saul whose name was Ziba, and they summoned him to David; and the king said to him, “Are you Ziba?” And he said, “I am your servant.”

Then the king said, “Is there no one remaining of the house of Saul to whom I could show the kindness of God?” And Ziba said to the king, “There is still a son of Jonathan, one who is disabled in both feet.”

So the king said to him, “Where is he?” And Ziba said to the king, “Behold, he is in the house of Machir the son of Ammiel, in Lo-debar.”

Then King David sent messengers who brought him from the house of Machir the son of Ammiel, from Lo-debar.

Mephibosheth, the son of Jonathan the son of Saul, came to David and fell on his face and prostrated himself. And David said, “Mephibosheth.” And he said, “Here is your servant!”