2 Samuel 18:6

6. Against Israel Alas! It was Israel against Israel. But it had come to pass that strong prejudices were manifest between the people of Israel and the men of Judah.

The wood of Ephraim A forest evidently not far from Mahanaim, and probably near the Jordan, but its exact locality and the origin of its name are now unknown. Grotius conjectured that it took its name from the great slaughter of the Ephraimites recorded Judges 12:1-6; and the Jews have a tradition that Joshua, who was an Ephraimite, permitted the people of his tribe to pasture their flocks in this forest. Keil argues that it was on the west of the Jordan in the tribe-land of Ephraim, which, according to Joshua 17:15, abounded in wood. But as David was at Mahanaim, and Absalom in Gilead, (2 Samuel 17:20,) this battle doubtless took place on the east of the Jordan.