The Holy Ghost you feel his presents, the Heavenly Father commission his only begotten Son Jehovah, to be the God of Abraham, Isaac and Jacob!
According to what the OT records say Moses only saw Jehavah.
The NT and Joseph Smith recorded that Heavenly Father introduce his Son
"This is my Son hear him" in several places!
Matt. 17:
5 While he yet spake, behold, a bright cloud overshadowed them: and behold a voice out of the cloud, which said, This is my beloved Son, in whom I am well pleased; hear ye him.
Mark 9:
7 And there was a cloud that overshadowed them: and a voice came out of the cloud, saying, This is my beloved Son: hear him.
Luke 9:
35 And there came a voice out of the cloud, saying, This is my beloved Son: hear him.
JS-H 1:
17 It no sooner appeared than I found myself delivered from the enemy which held me bound. When the light rested upon me 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 otherThis is My Beloved Son. Hear Him!
If that's what you believe, and you believe that God (the Father) and Jehovah are 2 completely different people, why would you say that Moses saw God Father in an effort to prove that Joseph Smith saw God the Father?
Don't worry. You are certainly not the first Mormon to pull that. ;-)