The men of Ephraim were gathered together, and passed northward; and they said to Jephthah, Why did you pass over to fight against the children of Ammon, and didn't call us to go with you? we will burn your house on you with fire.
"Northward"  (Judges 12:1).  Hervey suggested that, "The alternative reading for this word, `Zaphon, a city of the Gileadites,' should be used, because a movement of Ephraim to Gilead would have been eastward, not northward."[1]