In Joseph's version of the first vision given in the Pearl of Great Price, God the Father directs Joseph Smith to listen to his Son Jesus Christ:
I saw two Personages, whose brightness and glory defy all description, standing above me in the air. One of them spake unto me, calling me by name and said, pointing to the other—This is My Beloved Son. Hear Him! (JS-History 1:17)
Why did the Father defer to Christ instead of answering Joseph's questions directly?