The prophet Amos outlines the indictment that the Lord God has brought against them: They have trampled on the poor, taken advantage of them, engaged in practices which increased bankruptcies.
How much attention do modern prophets give to financial abuses? Do we consider fraudulent practices sins? Do we believe that God gets particularly upset about financial mistreatment of the poor?
Amos reminds us the the Lord will not forget any of this.