2 Samuel 21:7

Overview - 2 Samuel 21
1	The three years' famine for the Gibeonites ceases, by hanging seven of Saul's sons.
10	Rizpah's kindness unto the dead.
12	David buries the bones of Saul and Jonathan in his father's sepulchre.
15	Four battles against the Philistines, wherein four valiants of David slay four giants.

2 Samuel 21:7  (King James Version)
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.