He is the physical form of God in the person of Jesus Christ.  Jesus was present at and responsible for the creation of the universe and everything in it.

“All things were made by him; and without him was not any thing made that was made.” (Jhn 1:3 KJV)

Jesus, being the physical manifestation of God, only did the will of the Father, not His own physical desire. 

“For I came down from heaven, not to do mine own will, but the will of Him that sent me.” (Jhn 6:38 KJV)