Jamieson, Fausset and Brown on Judges 2:11-19

Jud 2:11-19. Wickedness of the New Generation after Joshua.

11-19. the children of Israel did evil in the sight of the Lord--This chapter, together with the first eight verses of the next [Jud 2:11-3:8], contains a brief but comprehensive summary of the principles developed in the following history. An attentive consideration of them, therefore, is of the greatest importance to a right understanding of the strange and varying phases of Israelitish history, from the death of Joshua till the establishment of the monarchy.

served Baalim--The plural is used to include all the gods of the country.