And they dwelt in their tents - The Hagarites were tribes of Nomade, or Scenite, Arabs; people who lived in tents, without any fixed dwellings, and whose property consisted in cattle. The descendants of Reuben extirpated these Hagarites, seized on their property and their tents, and dwelt in their place.
The “Hagarites” or “Hagarenes” are generally regarded as descendants of Hagar, and a distinct branch of the Ishmaelites 1 Chronicles 27:30-31; Psalm 83:6. They appear to have been one of the most wealthy 1 Chronicles 5:21 and widely-spread tribes of the Syrian Desert, being found on the side of the Euphrates in contact with the Assyrians, and also in the Hauran, in the neighborhood of Palestine, in contact with the Moabites and Israelites. If identical with the Agraei of the Classical writers, their name may be considered as still surviving in that of the district called Hejer or Hejera in northeastern Arabia, on the borders of the Persian Gulf. A full account of the war is given in 1 Chronicles 5:18-22.