Ephraim is oppressed, He is crushed in judgment; Because he is intent in his pursuit of idols.
Hailey and others have seen here a specific reference to the acceptance of Jeroboam's commandments for the people to worship the golden calves; and, while true enough, this by no means exhausts the ramifications of Ephraim's sin in walking after "man's command" instead of walking after "the commandment of the Lord."