Christ Giving Up the Kingdom

Ephesians 1:10
 
* * * The question has been raised, for which 1 was not prepared at the time, how far the giving up of the kingdom involved the giving up of His lordship over all things—His personal superiority (I do not merely mean divinity—that is clear). I apprehend, not. I have looked a little into it in Eph. 1 and Col. 1, but am not at the end of inquiry so as to teach, even if called for. What say you?
Ever affectionately yours.
New York,
April 4th, 1867.