I am not one to deny that there is anything useful or worth while about faith or having faith. Without faith or, at least hope, that whatever we attempt will make a difference, we would probably give up trying. Faith is ultimately what motivates us to strive and makes it possible to accomplish anything significant, whether good or bad. According to the Apostle, Paul:
HEBREWS 11:1 KJV "Now faith is the substance of things hoped for, the evidence of things not seen." Hebrews 11:1 “Now faith is the substance of things hoped for, the evidence of things not seen.” King James Version (KJV)
I think he was only half right. I can go along with the "faith is the substance of things hoped for" part, but I totally reject the notion that faith is in itself "evidence of things not seen", nor an acceptable substitute for evidence. At best faith is something based on evidence, and must give way to evidence that conclusively shows that the faith is mistaken or baseless. Faith can be a useful place holder, much like the number zero, that can lead to or amplify real evidence and sound reason. I liken it to our place value numerical notation system, giving evidence and reason the value of one, and the comfort or assurance of faith a value of zero. If we have both the "one" of evidence and reason and the "zero" of faith (that is "10") we have more than if we have just the "1" of evidence and reason. But, if we do have only the "1" of evidence and reason, we still have something. On the other hand, if we have only the "0" of faith, without the "1" of evidence and reason, we really have nothing at all, no matter how many "0s" we have.
Consider this: There are thousands of mutually contradictory religious belief systems available, all or most of which claim to be based on subjective faith in divine revelation and authority. This is the strongest possible evidence we can have of the unreliability of the subjective faith approach to discerning truth. Even if one of these mutually contradictory religions really were the infallible, divinely revealed truth its devout proponents or prophets claim it to be, the unreliability of that approach to discerning truth is still established beyond all reasonable doubt! Again, see my signature line!
No precept or claim is more suspect or more likely to be false than one that can only be supported by invoking the claim of Divine authority for it--no matter who or what claims such authority.