Proverbs 28:3
Is like a driving rain 
Matthew 18:28-30
                            
Treasury of Scripture Knowledge
Summary
                            A poor man that oppresseth the poor is like a sweeping rain which leaveth no food.                        
                    Poor man
General references
Bible References
Poor man
                                        Matthew 18:28                                        But that slave went out and found one of his fellow slaves who owed him a hundred denarii; and he seized him and began to choke him, saying, ‘Pay back what you owe.’  
                                    
                                                            
                        General references
                                        Leviticus 25:14                                        
                                                            
                        If you make a sale, moreover, to your friend or buy from your friend’s hand, you shall not wrong one another.