Elhanan in Fausset's Bible Dictionary

1. Son of Jaare-Oregim, or Jair, the Bethlehemitc. (See JAARE- OREGIM.) Slew Lahmi, brother of Goliath the Gittite (2 Samuel 21:19; 1 Chronicles 20:5). The 'oregim seems to have crept into the first line from the second, where it means "weavers." "The Bethlehemite" is an alteration of eth Lahmi, a confusion being made with 2. Elhanan son of Dodo of Bethlehem; first of "the thirty" of David's guard (2 Samuel 23:24; 1 Chronicles 11:26).