Albert Barnes Commentary Judges 2:12

"and they forsook Jehovah, the God of their fathers, who brought them out of the land of Egypt, and followed other gods, of the gods of the peoples that were round about them, and bowed themselves down unto them: and they provoked Jehovah to anger." — Judges 2:12 (ASV)

Provoked the Lord to anger — A frequent expression in connection with idolatry, especially in Deuteronomy, in the Books of the Kings, and in Jeremiah.