Disagreeing over a definition? Are you creating your own language? I generally look to a dictionary for the accepted definition.
1. complete trust or confidence in someone or something.
"this restores one's faith in politicians"
2. strong belief in God or in the doctrines of a religion, based on spiritual apprehension rather than proof.
That looks damned close to "DBT's definition". Although I have generally heard faith as meaning strong belief even if in spite of contrary evidence.
I didn't mean to suggest that DBT had invented the term, but it obviously was not the definition either I
or Sarpedon were using in our conversation. If DBT and I were arguing down in the Arts & Media about whether the bridge segment in "Take Five" adds anything to the piece musically or whether it is just a cheap set of fifths to ramp up energy, would it make sense for you to butt in and go "I am sick and tired of people equivocating about bridges. Bridges are physical structures that cross a river, not a metaphorical references to a break in the melody! Jazz musicians are so dishonest!!!!"
You have the relevant definition, the one we were actually discussing, in your post there.