Judges 1:22

And the house of Joseph, they also went up against Bethel,
&c.] Which lay upon the borders of the sons of Joseph, Ephraim and Manasseh, ( Joshua 16:1 Joshua 16:2 ) ; and though it seems to have been taken when Ai was, ( Joshua 8:17 ) ; yet it appears that it was now in the possession of the Canaanites; wherefore the tribes of Ephraim and Manasseh being desirous of enlarging their borders after the example of Judah, went against this place in order to take it:

and the Lord [was] with them;
the Word of the Lord, as the Targum, directing, assisting, and succeeding them in their attempt.