Contradiction with 2 Samuel 21:19
This verse seems to contradict the identity of Goliath’s killer attributed here to Elhanan, while in other accounts, it is David who kills Goliath. This suggests a contradiction in the portrayal of individual lineage and notable acts within descendants.
2 Samuel 21:19: And 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. [Jaareoregim: or, Jair]