I sustain all 17 Prophets of the Restoration, beginning with Joseph Smith Jr through to President Russell M Nelson. Hurrah for Israel!
Joseph Smith accomplished more than any mortal man could have accomplished in so short a time.
During his 38 and a half years of life, Joseph Smith was a man of the frontier—young, emotional, dynamic, and so loved and approachable by the people that they often called him “Brother Joseph.”
His comparative youth overarched his prophetic ministry. He was 14 at the time of the First Vision, 21 when he received the golden plates, and just 23 when he finished translating the Book of Mormon (in 65 to 75 working days).
The Church of Jesus Christ of Latter-day Saints was organized when Joseph Smith was 24 years old, and over half of the revelations in our Doctrine and Covenants were given through this prophet when he was 25 or younger.
Additionally, “[He] founded cities, including Kirtland, Far West, and Nauvoo; called and trained hundreds of church leaders; studied Hebrew and the Bible;… ran businesses, alone and with partners; developed real estate and built temples; wrote and published articles and editorials;… served in several civil capacities, including commander-in-chief of a large legion of militia men, as well as the mayor and chief judge for the city of Nauvoo... attracted tens of thousands of followers, prompting waves of converts to immigrate to the United States” (Gordon A. Madsen, Jeffrey N. Walker, and John W. Welch, eds., Sustaining the Law: Joseph Smith’s Legal Encounters (Provo: BYU Studies, 2014), xi-xii).
The only possible explanation is Heavenly help.
As one of his associates wrote just after his martyrdom: “Joseph Smith, the Prophet and Seer of the Lord, has done more, save Jesus only, for the salvation of men in this world, than any other man that ever lived in it” (Doctrine and Covenants 135:3).