Yes He was/is the last Adam but that does not mean He was not also God hence the false dichotomy fallacy.
So, God was the last Adam that was made a quickening spirit?
Jesus said a spirit does not have flesh and bones as you see that I have. Blood is the life of both man and animal. In 1 Corinthians 15 it also represents the corruptible body which the bible says cannot inherit the kingdom of God. Jesus resurrected body was no longer corruptible but was a new glorified body of flesh and bones.
Luke 24:39
39 " See My hands and My feet, that it is I Myself; touch Me and see, for a spirit does not have flesh and bones as you see that I have."
Genesis 9:4-6
4 "Only you shall not eat flesh with its life, that is, its blood. 5 "Surely I will require your lifeblood; from every beast I will require it. And from every man, from every man's brother I will require the life of man.
6 " Whoever sheds man's blood,
By man his blood shall be shed,
For in the image of God
He made man.
1 Corinthians 15:50-51
50 Now I say this, brethren, that flesh and blood cannot inherit the kingdom of God; nor does the perishable inherit the imperishable.
Paul not only states that one of the main tenants of the gospel is the belief that Jesus rose from the dead, but in verse 17, he goes on to say that “if Christ has not been raised, your faith is worthless; you are still in your sins.” For centuries, Christians have taught and defended the doctrine of the resurrection – teaching that Jesus physically rose in the same human body in which He died. Notice the correlation between the perishable human body and the imperishable resurrected body as described in 1 Corinthians 15:42-44:
“So also is the resurrection of the dead. It is sown a perishable body, it is raised an imperishable body; it is sown in dishonor, it is raised in glory; it is sown in weakness, it is raised in power; it is sown a natural body, it is raised a spiritual body. If there is a natural body, there is also a spiritual body.”
The Greek term, “soma” for “body” is always used in Scripture to refer to physical nature. Likewise, the term “spiritual” is used in the Scripture to denote “supernatural” behavior—not a “spiritual” essence of being. Thus, the phrase “spiritual body” in the passage above speaks of a “physical supernatural” body—not a “spirit body.” Another example of the term “spiritual” referring to “supernatural” behavior is 1 Corinthians 2:15 where we read, “But he who is spiritual appraises all things, yet he himself is appraised by no man.” The “spiritual” person in both of these passages is behaving in a “supernatural” way, not ontologically transforming “human” essence into “spirit” essence.
1 CORINTHIANS 15:50: “Now I say this, brethren, that flesh and blood cannot inherit the kingdom of God; nor does the perishable inherit the imperishable.” ronrhodes
Jehovah’s Witnesses claim that Jesus could not have risen in His human body of flesh and bones, because Scripture states that “flesh and blood” cannot inherit the kingdom of God. Notice that Jesus did not say that His resurrected body was made of “flesh and blood.” Rather, He said His body was made of “flesh and bone” (Luke 24:39). This is significant because the term “flesh and blood” is often used in Scripture to refer to mortal humanity,in contrast to the imperishable, resurrected body alluded to by the phrase, “flesh and bones.”
As noted earlier, Jesus’ blood provided the atonement for sin. He did not take His “blood” back, but merely resurrected his body of flesh and bones. Far from claiming that the resurrected human body cannot inherit God’s kingdom, this passage asserts that the mortal, perishable human body (made of flesh and blood) cannot inherit the immortal, imperishable kingdom of God. Indeed as 1 Corinthians 15:53 states, “this perishable must put on the imperishable, and this mortal must put on immortality.”
A spiritual body denotes an immortal body. A spiritual body is one that is dominated by the spirit, not one that is devoid of matter. The Greek word pneumatikos means a body that is directed by the spirit as opposed to one under the dominion of the flesh. It is not ruled by the flesh that perishes but by the spirit that endures. (1 Cor 15:50-58). A spiritual body does no mean immaterial or invisible but immortal and imperishable. Paul makes these parallels:
Earthly- Heavenly (verse 40)
Perishable- Imperishable (verse 42)
Weak- Powerful (verse 43)
Natural-Supernatural (verse 44)
Mortal- Immortal (verse 53)
The content shows that spiritual (pneumatikos) could be translated supernatural in contrast to natural from the parallels of perishable and imperishable, corruptible and incorruptible. Pneumatikos is translated supernatural in 1 Cor 10:4 regarding the supernatural rock that followed them in the wilderness. In the translation spiritual refers to physical objects. In 1 Corinthians 10:45 Paul spoke of the spiritual rock that followed Israel in the wilderness from which they got spiritual drink 1 Corinthians 10:4.But the OT story (Ex 17,Num 20)reveals it was a physical rock from which they got literal water to drink. The actual water they drank from the material rock was produced supernaturally. Further Paul spoke about a spiritual man 1 Corinthians 2:15 he obviously did not mean an invisible, immaterial man with no corporeal body. He was as a matter of fact speaking of a flesh and blood human being whose life is lived by the supernatural power of God, a literal person whose life is Spirit directed. A spiritual man is one who is taught by the Spirit and who receives the things that come from the Spirit of God. (1 Corinthians 2:13-14). The resurrection body can be called a spiritual body in much the same way we speak of the bible being a spiritual book. Regardless of their spiritual source and power both the resurrection body and the bible are material objects.
Life giving Spirit does not speak of the nature of Christ’s resurrected body but of the divine origin of the resurrection. Jesus physical body came back to life only by the power of God. (Romans 1:4). Paul is speaking about its spiritual source not its physical substance as a material body. If spirit describes the nature of Christ’s resurrected body then Adam with whom He is contrasted must not have a soul since he is described as of the earth, made of dust (verse 47). But the bible clearly says that Adam was a living soul (Genesis 2:7). Christ’s body is called a spiritual body (soma) which always means a physical body when referring to an individual human being. The resurrected body is called spiritual and life giving spirit because its source is in the spiritual realm, not because its substance is immaterial. Christ’s supernatural resurrection body is from heaven as Adams natural body was from the earth. (verse 47). But just as the one from earth has an immaterial soul even so the One from heaven has a material body.
1 Corinthians 15:50-54
50 I declare to you, brothers, that flesh and blood cannot inherit the kingdom of God, nor does the perishable inherit the imperishable. 51 Listen, I tell you a mystery: We will not all sleep, but we will all be changed— 52 in a flash, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, the dead will be raised imperishable, and we will be changed. 53 For the perishable must clothe itself with the imperishable, and the mortal with immortality. 54 When the perishable has been clothed with the imperishable, and the mortal with immortality, then the saying that is written will come true: "Death has been swallowed up in victory."
Paul said earlier in the chapter if Christ be not risen your faith is in vain and you are still dead in your sins- an unbeliever who is lost. Those who deny the physical bodily resurrection of Jesus such as the JW's who teach that Jesus is now a spirit based being fit into this camp. They deny the resurrection.
If we look at what Paul is saying in this passage, it is that corruptible flesh and blood shall not enter the kingdom. Paul says corruptible does not inherit the incorruptible. Paul is not saying the resurrection body will not have flesh but what he declares is that resurrected body will not have perishable flesh. Remember in Luke Jesus said see here My hands and feet, touch Me a spirit/ghost does not have flesh and bones as you see that I have. Peter, Paul and John all agree that Jesus still had flesh well after His ascension. 1 John being the last of the books of the three Apostles declared that Jesus having come in the flesh and those who deny this are the spirit of antichrist. John makes it clear that the Incarnation was permanent. Jesus is forever both God and man. This is what Paul teaches in the whole 15th chapter of 1 Corinthians. The glorious physical bodies that we will have in the resurrection. We will have incorruptible bodies just as Jesus now has in heaven. Soul= immortal, imperishable and Flesh=mortal, perishable.
Now in the resurrection in 1 corinthians 15 the perishable (your body now ) with put on the imperishable(body that does not perish). Just as we see with Jesus Resurrected body it is physical, has flesh and bones, the scars from His crucifixion which proves it was the same body but had changed from mortal to immortal.
hope this helps,