In answer to a question about differences between something Joseph Smith said about a scripture and something another prophet said about the same scripture, here is my response:
When Peter referred to the fulfillment of Joel Chapter 2, he declared: “This is that which was spoken by the prophet Joel.” (Acts 2:14-20.)
Both spoke the truth.
How many times have Isaiah’s words “beautiful upon the mountains” been fulfilled? (Isaiah’s prophecy is in Isa. 52: 7. It was discussed by later prophets in different settings. In 1 Ne. 13: 37: Nephi speaking about those who will seek to establish Zion in the last days. In Mosiah 15: 13-17: Abinadi speaking of those who testified about Christ in every generation, past, then and in the future. In 3 Ne. 20: 40: Christ speaking of the future generation when Zion will be established.) Do not think that because one prophet has declared a matter to be fulfillment of scripture that the Lord cannot declare through another prophet another fulfillment of the same scripture. As the Lord stated, “Because that I have spoken one word ye need not suppose that I cannot speak another; for my work is not yet finished; neither shall it be until the end of man, neither from that time henceforth and forever.” 2 Ne. 29: 9.