2 Samuel 21:19
19 And there was again a battle in Gob with the Philistines, where Elhanan the son of Jaareoregim,g a Bethlehemite, slew the brother of Goliath the Gittite, the staff of whose spear was like a weaver's beam.
Why does this verse say David killed Goliath when 2 Samuel 21:19 says Elhanan killed Goliath?
PROBLEM: In 1 Samuel 17:50-51, David is said to have cut off the head of Goliath after striking him with the stone from his sling. However, according to 2 Samuel 21:19, it was Elhanan the son of Jaare-Oregim that killed Goliath. Why does one passage claim that David killed Goliath when the other claims that Elhanan did?
SOLUTION: The passage in 2 Samuel 21:19 which reads, “Elhanan the son of Jaare- Oregim the Bethlehemite killed Goliath the Gittite, the shaft of whose spear was like a weaver’s beam” (the italicized words “the brother of” are not in the Hebrew text), is obviously a copyist error. This is substantiated by the fact that there is a parallel passage in 1 Chronicles 20:5 that reads, “and Elhanan the son of Jair killed Lahmi the brother of Goliath the Gittite, the shaft of whose spear was like a weaver’s beam.” The corruption of the passage in 2 Samuel 21:19 is traceable to the confusion by a copyist of several letters and words which, when combined in a certain way, could yield the reading found in the 2 Samuel passage.
2 Samuel 21:19 — This verse says “Elhanan … killed Goliath” but 1 Samuel 17 declares that David did.
PROBLEM: First Samuel 17 records the dramatic story of how David the son of Jesse killed the giant Goliath. However, 2 Samuel 21:19 says clearly: “Elhanan … killed Goliath the Gittite.” But both texts cannot be right.
SOLUTION: The 2 Samuel text is probably a scribal error in copying the manuscript and should read “Elhanan … slew Lahmi the brother of Goliath the Gittite.” This conclusion is supported by a parallel report of the story in 1 Chronicles 20:5 which has the missing highlighted phrase “Lahmi the brother of,” thus showing it was the brother of Goliath that Elhanan killed and not Goliath, whom David slew just as 1 Samuel 17 reports.