19 There was again war with the Philistines at Gob; and Elhanan the son of Jaare-Oregim the Bethlehemite killed Goliath the Gittite’s brother, the staff of whose spear was like a weaver’s beam.
2 Samuel 21:19 Cross References - WEB
1 Samuel 17:4-11
4 A champion out of the camp of the Philistines named Goliath, of Gath, whose height was six cubits and a span went out.
5 He had a helmet of bronze on his head, and he wore a coat of mail; and the weight of the coat was five thousand shekels of bronze.
6 He had bronze shin armor on his legs, and a bronze javelin between his shoulders.
7 The staff of his spear was like a weaver’s beam; and his spear’s head weighed six hundred shekels of iron. His shield bearer went before him.
8 He stood and cried to the armies of Israel, and said to them, “Why have you come out to set your battle in array? Am I not a Philistine, and you servants to Saul? Choose a man for yourselves, and let him come down to me.
9 If he is able to fight with me and kill me, then will we be your servants; but if I prevail against him and kill him, then you will be our servants and serve us.”
10 The Philistine said, “I defy the armies of Israel today! Give me a man, that we may fight together!”
11 When Saul and all Israel heard those words of the Philistine, they were dismayed, and greatly afraid.
1 Chronicles 11:26
26 The mighty men of the armies also include Asahel the brother of Joab, Elhanan the son of Dodo of Bethlehem,
1 Chronicles 20:5
5 Again there was war with the Philistines; and Elhanan the son of Jair killed Lahmi the brother of Goliath the Gittite, the staff of whose spear was like a weaver’s beam.