First he became a man. He was fully man, but in the body that he was in was a body such as we have, and therefore subject to hunger, thirst, suffering, and even temptation. "He was tempted in all things such as we are." Therefore the body that he had while on earth, was not "perfect" in the sense that it is now "perfect."Please look more carefully at what you have written. You qualified (pared down, actually) the verse to refer only to Christ's deity. But it refers to more than that.
I ask again: Can perfection be perfected? Christ was always perfect from eternity past, just as the Father and Spirit were and are. For the second person of the Triunity to take on flesh and blood - and keep it throughout the "other half" of eternity (from ascension on through eternity future) would definitely be a change of a profound degree.
Paul says: "We wait for the redemption of our bodies." Christ's body was "perfected" at the time of the resurrection, when the earthly body that he had was glorified. In the garden Mary thought he was the gardener. He looked similar but not exactly the same. The two on the road to Emmaus did not recognize him all that way until he broke bread with them. His body was different, but similar. It still bears the marks of the nail prints in his hands, feet, and the scar in his side, as he invited Thomas to come and look. It is not the same. It can pass through locked doors. It go from one place to another instantly. It defies gravity. We will have a body like his. He sat down with the disciples in this resurrected body and ate fish with them. It is not the same; it is different, but it has similar functions.
Man cannot comprehend what God has in store for him.
Why would it?Such a change goes against what we are told of Christ and God in Scripture. It is also contrary to this verse.
"I am the Lord; I change not." That refers to God's character; his nature. It does not refer to the second person of the trinity taking on a human form.
God is consistent in his behavior with mankind--as he was with Adam and Eve throughout all ages with all people. He changes not.
I look forward to it. Safe travels.BTW, I really want to write more on this thread, but am constrained by time. Luckily I have good access to this site again. But I have classes every day right up until the time we leave Jilin. And then we will be finally be able to see other parts of China before we fly out from Hong Kong on the 14th. All this to explain my probably sporadic writing in the next few weeks.