Behold, O Lord, thou canst do this. We know that thou art able to show forth greater power, which looks small unto the understanding of men. (Ether 3:5)
Surely this wouldn't be the voice of the Brother of Jared. Jared's praise to God in this way would have been a blatant back-handed complement, and therefore out of character. On the other hand, the person of Joseph Smith, who was mocked and even legally prosecuted for the use of seer stones... saying this would have been perfectly understandable and within character.
I have the bad habit of reinventing the wheel, so forgive me if someone else has made this observation before. Frankly, I’d be surprised if nobody has, since it seems so obvious to me now. Your thoughts?
Edit to add: Similar language was expressed about the Liahona—another divining instrument likely inspired by Joseph Smith's treasure seeking activities. After describing its workings, Nephi remarks, "And thus we see that by small means the Lord can bring about great things." (1 Nephi 16:29) Coincidence?
Photo from http://mrm.org/mormons-on-pbs