Romans 6:8-9, (AV)...
"Now if we be dead with Christ, we believe that we shall also live with him: Knowing that Christ being raised from the dead dieth no more; death hath no more dominion over him."
An immortal "deathless" body is certainly not the same as our born from Adam flesh.
Acts 13:32-34, (AV)...
32 And we declare unto you glad tidings, how that the promise which was made unto the fathers,
33 God hath fulfilled the same unto us their children, in that he hath raised up Jesus again; as it is also written in the second psalm, Thou art my Son, this day have I begotten thee.
34 And as concerning that he raised him up from the dead, now no more to return to corruption, he said on this wise, I will give you the sure mercies of David.
Jesus, to be installed in the throne (cp., Ps 2:6) was born of resurrection, which is the day God says, "My son art Thou! I, today, have begotten Thee." (Psalm 2:7) This statement from Psalm 2 is quoted again and again. Here it is concerning His superiority to the very angels (cf., Heb 1:5), to whom Adamic man is inferior (cf., Ps 8:4-5). There it is regarding His Melchizedek Priesthood superior to Aaron's (cp., Heb 5:5). It is, "...because of His remaining into the eon, [he] has an inviolate priesthood" (Heb 7:24, AV), again something not from Adam.
Not only in resurrection, prior to ascension; but, now:
Ephesians 1:10-22, (CLV)...
19 and what the transcendent greatness of His power for us who are believing, in accord with the operation of the might of His strength,
20 which is operative in the Christ, rousing Him from among the dead and seating Him at His right hand among the celestials,
21 up over every sovereignty and authority and power and lordship, and every name that is named, not only in this eon, but also in that which is impending:
22 and subjects all under His feet, and gives Him, as Head over all, to the ecclesia which is His body, the complement of the One completing the all in all.
While the body that died is the same body that was raised from the dead in the case of Jesus, a one to one correspondence, it is a transfigured body. "It is sown a soulish body; it is roused a spiritual body. If there is a soulish body, there is a spiritual also. Thus it is written also, The first man, Adam, "became a living soul:" the last Adam a vivifying Spirit. (1 Co 15:44-45, CLV) Jesus took Adamic humanity, its world, and all of it that God blessed into the grave and left it there. He raised from the dead and ascended into whatever is the Father's, from whence He is sent as Spirit into our hearts, as "making alive spirit" (vs. 45) for us to know Him, or rather be, "...known by Him" (1 Co 8:3) because we love Him.
your brother, James Rohde