12 David went and took the bones of Saul and the bones of his son Jonathan from the people of Jabesh-gilead, who had stolen them from the public square of Beth-shan, where the Philistines had hung them up, on the day the Philistines killed Saul on Gilboa. 13 He brought up from there the bones of Saul and the bones of his son Jonathan; and they gathered the bones of those who had been impaled. 14 They buried the bones of Saul and of his son Jonathan in the land of Benjamin in Zela, in the tomb of his father Kish; they did all that the king commanded. After that, God heeded supplications for the land.
15 The Philistines went to war again with Israel, and David went down together with his servants. They fought against the Philistines, and David grew weary. 16 Ishbi-benob, one of the descendants of the giants, whose spear weighed three hundred shekels of bronze, and who was fitted out with new weapons, said he would kill David. 17 But Abishai son of Zeruiah came to his aid, and attacked the Philistine and killed him. Then David's men swore to him, "You shall not go out with us to battle any longer, so that you do not quench the lamp of Israel."
18 After this a battle took place with the Philistines, at Gob; then Sibbecai the Hushathite killed Saph, who was one of the descendants of the giants. 19 Then there was another battle with the Philistines at Gob; and Elhanan son of Jaare-oregim, the Bethlehemite, killed Goliath the Gittite, the shaft of whose spear was like a weaver's beam. 20 There was again war at Gath, where there was a man of great size, who had six fingers on each hand, and six toes on each foot, twenty-four in number; he too was descended from the giants. 21 When he taunted Israel, Jonathan son of David's brother Shimei, killed him. 22 These four were descended from the giants in Gath; they fell by the hands of David and his servants.
Matthew Henry's Commentary on 2 Samuel 21:12-22
Commentary on 2 Samuel 21:10-14
(Read 2 Samuel 21:10-14)
That a guilty land should enjoy many years of plenty, calls for gratitude; and we need not wonder misused abundance should be punished with scarcity; yet how few are disposed to ask of the Lord concerning the sinful cause, while numbers search for the second causes by which he is pleased to work! But the Lord will plead the cause of those who cannot or will not avenge themselves; and the prayers of the poor are of great power. When God sent rain to water the earth, these bodies were buried, for then it appeared that God was entreated for the land. When justice is done on earth, vengeance from heaven ceases. God is pacified, and is entreated for us through Christ, who was hanged on a tree, and so made a curse for us, to do away our guilt, though he was himself guiltless.
Commentary on 2 Samuel 21:15-22
(Read 2 Samuel 21:15-22)
These events seem to have taken place towards the end of David's reign. David fainted, but he did not flee, and God sent help in the time of need. In spiritual conflicts, even strong saints sometimes wax faint; then Satan attacks them furiously; but those who stand their ground and resist him, shall be relieved and made more than conquerors. Death is a Christian's last enemy, and a son of Anak; but through Him that triumphed for us, believers shall be more than conquerors at last, even over that enemy.