Moroni 10:25

I have spent the last several years studying Moroni in the Book of Mormon. He wrote a total of 527 verses. This is the introduction to my papers for those that are interested:
The One Among You that Doeth Good:
Moroni’s Hidden Witness of the Prophet Joseph Smith
Short Study of Moroni 10:25 2.18.07 revision
Eric W. Olsen
"But a seer can know of things which are past, and also of things which are to come, and by them shall all things be revealed, or, rather, shall secret things be made manifest, and hidden things shall come to light, and things which are not known shall be made known by them, and also things shall be made known by them which otherwise could not be known." (Mosiah 8:17)

Introduction

Moroni 10, the final chapter of the Book of Mormon, is best known for Moroni’s promise in verses 4-5. Yet, more insights can be found in the verses that follow this beloved promise. For instance we find Moroni’s description of the gifts of the spirit in verses 9-16. He culminates with a provocative statement regarding a time when the gifts of the spirit would not be found upon the earth. We know verse 25 to be important because in the immediately previous verse, he broadens his exhortation to include the, "ends of the earth":

24. And now I speak unto all the ends of the earth- that if the day cometh that
the power and gifts of God shall be done away among you, it shall because
of unbelief.
25. And wo be unto the children of men if this be the case; for there shall be none that doeth good among you, no not one. For if there be one among you that doeth good, he shall work by the power and gifts of God (italics added)

President Ezra Taft Benson said this of the Book of Mormon authors:
if they, saw our day, and chose those things which would be of greatest worth to us, is not that how we should study the Book of Mormon? We should constantly ask ourselves, why did the Lord inspire Mormon (or Moroni or Alma) to include that in his record? What lesson can I learn from that to help me live in this day of age? Joseph Smith taught regarding his study of the scriptures, "I have a key by which I understand the scriptures. I enquire, what was the question which drew out the answer.... To ascertain its meaning, we must dig up the root and ascertain what it was that drew the saying."2

With this advice in mind, I will examine Moroni 10:25. This is commonly read as a general maxim. If a person does good he is working by the gifts and power of God. Using President Benson’s advice and Joseph Smith’s key, can verse 25 be read in a different, more probing manner? I will analyze the particular words and phrases in verse 25 and compare them with like words or phrases in Moroni’s other writings. These scriptures will be examined in order to determine if there is evidence to show that Moroni, also wanted the reader to refer to the Prophet Joseph Smith as, "the one among you that doeth good." A close review of the gifts of the spirit in Moroni 10: 9-16, evidences of doing good in Moroni 10:25, will determine if Moroni intended them additionally to serve as a witness of the Prophet Joseph Smith. The language Moroni used to describe these gifts will be compared to writings by other Book of Mormon authors that testify of the latter day prophet. Then Moroni’s writings will be analyzed in order to find evidence why he would interweave a hidden testimony in his final words.
Avraham Gileadi explained regarding Book of Mormon study:

As we pursue the truth, ought we not try to determine all that the prophet-writer
intended and not limit ourselves to less? The prophet knew what he meant and he
imbedded the meaning in his writings. In characteristic fashion, moreover, he left
ample clues to discover his meaning by our "searching" the things he wrote.3