Abel - More commonly called 2 Samuel 20:15 “Abel-Beth-maachah” to distinguish it from other places of the name of “Abel” (a grassy plain). It is represented by the modern Abil-el-Kamh, a Christian village on the northwest of lake Huleh, the ancient Merom. Compare 2 Chronicles 16:4, “Abel-maim,” Abel by the water.
And all the Berites - What this means is utterly unknown. Many approve of the reading of the Latin Version, connecting it with what follows: “And all the choice young men mustered and followed him.”