Do you believe that it is necessary for Jesus to bring people back from physical death in order for them to have eternal life in heaven?
Do you think that people will have physical bodies in heaven?
1 Corinthians 15
New Living Translation
The Resurrection Body
35 But someone may ask, “How will the dead be raised? What kind of bodies will they have?”
40 There are also bodies in the heavens and bodies on the earth.
The glory of the heavenly bodies is different from the glory of the earthly bodies.
41 The sun has one kind of glory, while the moon and stars each have another kind. And even the stars differ from each other in their glory.
42 It is the same way with the resurrection of the dead. Our earthly bodies are planted in the ground when we die, but they will be raised to live forever.
43 Our bodies are buried in brokenness, but they will be raised in glory. They are buried in weakness, but they will be raised in strength.
44 They are buried as natural human bodies, but they will be raised as spiritual bodies. For just as there are natural bodies, there are also spiritual bodies.
50 What I am saying, dear brothers and sisters, is that our physical bodies cannot inherit the Kingdom of God. These dying bodies cannot inherit what will last forever.
51 But let me reveal to you a wonderful secret. We will not all die, but we will all be transformed!
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50 What I am saying, dear brothers and sisters, is that our physical bodies cannot inherit the Kingdom of God. These dying bodies cannot inherit what will last forever.
The Kingdom of God is in heaven, so that verse above means that our physical bodies cannot exist in heaven, which will last forever.
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Below is an apt description of what happens when we die (all of us) is below.
Please note that the words spirit and soul have the same meaning since the soul is the human spirit.
421. When the body is no longer able to perform the bodily functions in the natural world that correspond to the spirit’s thoughts and affections, which the spirit has from the spiritual world, man is said to die. This takes place when the respiration of the lungs and the beatings of the heart cease. But the man does not die; he is merely separated from the bodily part that was of use to him in the world, while the man himself continues to live. It is said that the man himself continues to live since man is not a man because of his body but because of his spirit, for it is the spirit that thinks in man, and thought with affection is what constitutes man. Evidently, then, the death of man is merely his passing from one world into another. And this is why in the Word in its internal sense “death” signifies resurrection and continuation of life.
The death of man is merely his soul passing from one world into another. When the soul (spirit) passes from this world into the spiritual world (heaven) it takes on a new form comprised of spiritual elements and the man continues to live forever.
What makes us human is our soul, not our physical body, and our soul continues to live forever. All of who we are -- our personality -- will survive the resurrection, except the physical body. The death of man is merely his soul passing from one world into another. When the soul passes from this world into the spiritual world it takes on a new form comprised of spiritual elements that exist in the spiritual realm of existence.
My Baha'i beliefs are congruent with what it says in the Bible as noted above, in 1 Corinthians 15.
“The answer to the third question is this, that in the other world the human reality doth not assume a physical form, rather doth it take on a heavenly form, made up of elements of that heavenly realm.”
Jesus is alive in heaven in a spiritual body. Jesus is not alive in a physical body because physical bodies cannot exist in heaven.
The spiritual body of Jesus cannot return to this earth for all to see Him because spiritual bodies do not exist on earth.