11 In lament, David ripped his clothes to ribbons. All the men with him did the same. 12 They wept and fasted the rest of the day, grieving the death of Saul and his son Jonathan, and also the army of God and the nation Israel, victims in a failed battle. 13 Then David spoke to the young soldier who had brought the report: "Who are you, anyway?" "I'm from an immigrant family - an Amalekite." 14 "Do you mean to say," said David, "that you weren't afraid to up and kill God's anointed king?" 15 Right then he ordered one of his soldiers, "Strike him dead!" The soldier struck him, and he died. 16 "You asked for it," David told him. "You sealed your death sentence when you said you killed God's anointed king."
Matthew Henry's Commentary on 2 Samuel 1:11-16
Commentary on 2 Samuel 1:11-16
(Read 2 Samuel 1:11-16)
David was sincere in his mourning for Saul; and all with him humbled themselves under the hand of God, laid so heavily upon Israel by this defeat. The man who brought the tidings, David put to death, as a murderer of his prince. David herein did not do unjustly; the Amalekite confessed the crime. If he did as he said, he deserved to die for treason; and his lying to David, if indeed it were a lie, proved, as sooner or later that sin will prove, lying against himself. Hereby David showed himself zealous for public justice, without regard to his own private interest.