Since the Lord, with the Divine and Human united in one, ascended into heaven, and sat “at the right hand of God” (by which Divine Omnipotence is signified), it follows that his Human substance or essence is as his Divine. To think otherwise, would be like thinking that his Divine was taken up into heaven and sat at the right hand of God, and not Human at the same time.
This is contrary to Scripture, and also contrary to the Christian doctrine, which is “That God and Man in Christ are as the soul and the body,” to separate which would be contrary to sound reason.
This union of the Father and the Son, or of the Divine with the Human, is meant also in the following passages: “I came forth from the Father, and have come into the world; again, I leave the world, and go to the Father” (John 16:28). “I go away, and come to Him who sent me” (John 7:33; 16:5, 16; 17:11, 13; 6:62; 3:13). Every man who is saved “ascends into heaven;” yet not of himself, but of the Lord. The Lord alone ascended of Himself.
from The Human Made Divine, Pages 144