And the writer gave examples

 From the elders the first believers 

But something seen

 With spiritual eyes 

He the writer gave us a description of what that means

 Something you can't see with natural eyes 

Which is

 The substance of things hoped for and the evidence of things not seen 

Is saying now

 I'm about to give you the definition of faith 

Going against everything I know

 The word now is definition number 7

The writer it says at the end of the chapter 

The now

 At the beginning of chapter 11 is definition number 7