3:31 The side of the country which lay south-west, was infested by the Philistines. God raised up Shamgar to deliver them; having neither sword nor spear, he took an ox-goad, the instrument next at hand. God can make those serviceable to his glory and to his church's good, whose birth, education, and employment, are mean and obscure. It is no matter what the weapon is, if God directs and strengthens the arm. Often he works by unlikely means, that the excellency of the power may appear to be of God.

31. after him was Shamgar—No notice is given of the tribe or family of this judge; and from the Philistines being the enemy that roused him into public service, the suffering seems to have been local—confined to some of the western tribes.

slew … six hundred men with an oxgoad—This instrument is eight feet long and about six inches in circumference. It is armed at the lesser end with a sharp prong for driving the cattle, and on the other with a small iron paddle for removing the clay which encumbers the plough in working. Such an instrument, wielded by a strong arm, would do no mean execution. We may suppose, however, for the notice is very fragmentary, that Shamgar was only the leader of a band of peasants, who by means of such implements of labor as they could lay hold of at the moment, achieved the heroic exploit recorded.