2 Samuel 21:16-19

16And Ishbibenob, who was of the sons of the giant, the weight of whose spear was three hundred shekels of brass in weight, he being girded with a new sword, thought of slaying David.12 17But Abishai the son of Zeruiah helped him, and smote the Philistine, and killed him. Then the men of David swore to him, saying, Thou shalt go out no more with us to battle, that thou mayest not put out the light of Israel.3 18And it came to pass after this, that there was again a battle with the Philistines at Gob: then Sibbechai the Hushathite slew Saph, who was of the sons of the giant.45 19And there was again a battle in Gob with the Philistines, where Elhanan the son of Jaareoregim, a Bethlehemite, slew the brother of Goliath the Gittite, the staff of whose spear was like a weaver’s beam.6