BR defined faith as
... the excuse people use when believing something for which there is insufficient evidence.
I would like to suggest that this is a seriously flawed understanding of 'faith'. Before my father died in 1982, I had faith in his decision-making abilities and his approach to life because I had seen both in action and bearing fruit. I would use the same criteria for faith in anyone else, including a deity. Oddly enough, from a purely scientific way of thinking, there was probably limited evidence to support the faith I had in my father, but experience provided the evidence I needed.
If you have evidence for something then faith is not required
One needs faith, even when 'evidence' exists; in fact, even when 'evidence' exists, one has to have experience and understanding to validate that evidence.