“But the king spared Mephibosheth, the son of Jonathan the son of Saul, because of the LORD'S oath that was between them, between David and Jonathan the son of Saul.”
King James Version (KJV)
21:7 Spared - For the Gibeonites desiring only such a number, it was at David's choice whom to spare. Of Jonathan - This is added, to distinguish him from the other Mephibosheth, ver.#8|.