18 After this, there was another battle against the Philistines at Gob. As they fought, Sibbecai from Hushah killed Saph, another descendant of the giants. 19 During another battle at Gob, Elhanan son of Jair from Bethlehem killed the brother of Goliath of Gath. The handle of his spear was as thick as a weaver's beam! 20 In another battle with the Philistines at Gath, they encountered a huge man with six fingers on each hand and six toes on each foot, twenty-four in all, who was also a descendant of the giants. 21 But when he defied and taunted Israel, he was killed by Jonathan, the son of David's brother Shimea. 22 These four Philistines were descendants of the giants of Gath, but David and his warriors killed them.
Matthew Henry's Commentary on 2 Samuel 21:18-22
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.