"And he said, Please, show me Your glory. Then He said, I will make all My goodness pass before you, and I will proclaim the name of the Lord before you. I will be gracious to whom I will be gracious, and I will have compassion on whom I will have compassion. But He said, You cannot see My face; for no man shall see Me, and live. And the Lord said, Here is a place by Me, and you shall stand on the rock. So it shall be, while My glory passes by, that I will put you in the cleft of the rock, and will cover you with My hand while I pass by. Then I will take away My hand, and you shall see My back; but My face shall not be seen.” (Exodus 33:18-23)
No man in his sinful nature can look into the fullness of God's glory and survive. Also, the New Testament tells us that no man alive on this earth has seen God the Father:
"No one has ever seen God, but the one and only Son, who is himself God and is in closest relationship with the Father, has made him known." (John 1:18)
"No one has ever seen God; but if we love one another, God lives in us and his love is made complete in us." (1 John 4:12)
The mere fact that Joseph Smith came out of the woods walking and talking in his flesh testifies to the falseness of his claims. In other words, he is a liar and a deceiver. Joseph Smith received no divine revelation from God. Mormonism is based on utter falsehood.