[Biblestudent]

I think John 20:29 gives us the two definitions of faith:

John 20:29 Jesus saith unto him, Thomas, because thou hast seen me, thou hast believed: blessed are they that have not seen, and yet have believed.

Is "believe" (verb) the same as "faith" (noun)? I have encountered people here (actually my classmates in Bible school) who seems to over divide the word to the extent of saying that "believe" is not "faith". My answer was of course they are different parts of speech. One can not say:
"Thomas faith in Christ", but
"Thomas believes in Christ";
nor can a person say, "
Thomas has no believe", but:
"Thomas has no faith".

So, if believe and faith mean the same, except that one is a verb and the other is a noun, then according to Jesus Christ:
Thomas believed (verb) because he has seen (verb); or Thomas had faith (noun) after he had sight, or
Thomas had belief (synonym of faith) after he had vision (synonym of sight).