Of Christ we read
John 21:25 And there are also many other things which Jesus did, the which, if they should be written every one, I suppose that even the world itself could not contain the books that should be written. Amen.
As Brigham Young observed, the message here is that if we were to lay out the full meaning of everything Christ taught then the world could not contain the books that should be written.
And that is, in some measure, true about Joseph Smith as well. His words have depth like scripture. Has the world seen his equal except in the Son of God?
Who else could have penetrated the veil with only a text of scripture that was being wholly misinterpreted by the teachers of his day. Who else could have stayed so pure to have been worthy in the presence of the Father and the Son without having yet received remission of sins through baptism?
No unclean thing can dwell in the presence of God, for if anything is unclean it shrinks in agony at the manifest truth of its own perfectly known sins.
But Joseph Smith was so virtuous, so pure, that he could endure the perfect knowledge of his own state before God even without having been baptized.
Who else could we say that of?
Did not Adam and Eve fear and hide when they heard the voice of the Lord?
Rightly did Brigham Young say "I feel like shouting Hallelujah, all the time, when I think that I ever knew Joseph Smith".