Bill Mounce looks at the grammar behind "obedience of faith" (is it
obedience that is faith,
obedience and faith,
obedience that comes from faith, etc.). He conveys this important principle:
Does Greek help us make a decision? Well, only partially. Wouldn’t it be great if a knowledge of Greek made all the answers clear to us? It would make all the hours of learning the language seem more worthwhile. But as you will hear me say over and over again in this blog, grammar usually shows us the possible meanings, but it is context that determines which of the options is right for any particular passage.