“You will rejoice in the Lord;
you will boast in the Holy One of Israel.”
Chastised Israel would see her enemies defeated. The chosen people would come to understand that only the Lord is God. Idols are nothing and can do absolutely nothing for those who worship them.
Idolatry is as common today as it ever was. Many idols are set up in the heart. Christians reject all gods but One, and in him they rejoice and boast.