2 Samuel 21:16-19

16Then Ishbi-benob, who was among the descendants of the giant, the weight of whose spear was three hundred shekels (six pounds) of bronze, was armed with a new sword, and he intended to kill David.

17But Abishai the son of Zeruiah came to David’s aid, and struck and killed the Philistine. Then David’s men swore to him, “You shall not go out again with us to battle, so that you do not extinguish the lamp of Israel.”

18After this, there was war again with the Philistines at Gob (Gezer). At that time Sibbecai the Hushathite killed Saph (Sippai), who was among the descendants of the giant.

19There was war with the Philistines again at Gob, and Elhanan the son of Jaare-oregim, a Bethlehemite, killed Goliath the Gittite, whose spear shaft was like a weaver’s beam.