15 There was war again between the Philistines and Israel, and David went down together with his servants, and they fought against the Philistines. And David grew weary. 16 And Ishbi-benob, one of the descendants oof the giants, whose spear weighed three hundred shekels2 of bronze, and who was armed with a new sword, thought to kill David. 17 But Abishai the son of Zeruiah came to his aid and attacked the Philistine and killed him. Then David’s men swore to him, p“You shall no longer go out with us to battle, lest you quench qthe lamp of Israel.”
18 rAfter this there was again war with the Philistines at Gob. Then sSibbecai tthe Hushathite struck down Saph, who was one of the descendants uof the giants. 19 And there was again war with the Philistines at Gob, and vElhanan the son of Jaare-oregim, the Bethlehemite, struck down Goliath the Gittite, wthe shaft of whose spear was like a weaver’s beam.3 20 And there was again war at Gath, where there was a man of great stature, who had six fingers on each hand, and six toes on each foot, twenty-four in number, and he also was descended xfrom the giants. 21 And when yhe taunted Israel, Jonathan the son of Shimei, David’s brother, struck him down. 22 These four were descended xfrom the giants in Gath, and they fell by the hand of David and by the hand of his servants.
A shekel was about 2/5 ounce or 11 grams
Contrast 1 Chronicles 20:5, which may preserve the original reading