Judges 1:34-36

As for the tribe of Dan, the Amorites forced them back into the hill country and would not let them come down into the plains. The Amorites were determined to stay in Mount Heres, Aijalon, and Shaalbim, but when the descendants of Joseph became stronger, they forced the Amorites to work as slaves. The boundary of the Amorites ran from Scorpion Pass to Sela and continued upward from there.