Augustine’s message about the two cities in City of God has important implications for Christian political engagement today. By resisting a facile sorting of the good from the bad, he reminds his Christian readers that their own transformation is far from complete and so helps them work for earthly peace in a spirit of humility.
If Christians truly believe that we are charged with protecting a moral vision in our country, then we must recognize that this vision cannot be imposed by force. If we want to remain more than an interest group, we must stop treating our first amendment rights as freedoms from interference and start treating them as freedoms for witness, laden with obligations of love.