And Ishbibenob, which [was] of the sons of the giant
 Of Goliath, or of a giant, of the race of them: 
 the weight of whose spear [weighed] three hundred [shekels] of brass in
 weight;
 which must be understood either of the wood of it, or of the head of it, the flaming point of it, as many interpret it; and if so, it was but half the weight of Goliath's spear, unless there was any difference of the weight of iron and of brass, see ( 1 Samuel 17:7 ) ; 
 he being girded with a new [sword];
 or rather with a new girdle, as the Targum; and so Jarchi, which might be given him as a mark of honour, or as a token of his having a commission in the army: 
 thought to have slain David;
 his aim was at him, and perceiving him faint and feeble, thought to take the advantage of it, and dispatch him.