~ Tentative thoughts…
1) Faith and fear are synonymous if the fear in question is Fear of the Lord.
2) Faith and fear are mutually exclusive if the fear in question is a fear of the world, the devil, man, the future, etc. I.e. all that is not God.
3) Fear of the Lord and all other fear are mutually exclusive such that if the Fear of the Lord is truly present in a person, it will exorcise out all other fears.
~ That is to say that the big Fear drives out all the little fears. For example, you could be waiting at the mechanic-shop, fearful about whats wrong with your car and how much its going to cost to fix it, and you get a phone-call telling you that someone you love has cancer. Now all those car worries are gone as you ache over the sick person.
“There is no fear in love. But perfect love drives out fear, because fear has to do with punishment. The one who fears is not made perfect in love.” ~ 1 John 4:18