text: Catholicism is not sola scriptura. 
  
  The Catholic Church takes a more comprehensive ear to the will and word of God, looking at revealed teaching (Scripture), natural law, rational inquiry, etc. 
  
  The approach you seem most comfortable with is a fundamentalist one: "where in scripture does it say this'.  That's not the Catholic approach to leveraging Scripture. 
  
  My checkmate move to you is:  where in Scripture does it say we only believe what's in scripture!
  
  Show me the verse and I will cede.