Should churches, to the extent that they have economic muscle, use it to attack specific social evils and to support specific ethical ideals? The deepening involvement of religions bodies in social problems has brought them face to face with an old quandry in a new guise.’ Are there really two realms, God's and Mammon's, or is there only one a kingdom of heaven on earth to be established at least in part by judicious combinations of moral right and economic might?