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, 2 Samuel 21:8.
Related Commentaries of 2 Samuel 21:7
2 Samuel 21:7
7 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.