The "link" between body and soul is plain in the text of scripture.
Body and soul are separated at death, but that separation is only temporary. Life in the eternal kingdom will be a life in a physical body. This is quite clear as Jesus Himself, when resurrected, is given a new, physical body. To continue to hold your position, you'd have to argue Jesus was raised spiritually, not physically.
This is, perhaps, the most troubling statements...
You say "Adam and Eve sinned BEFORE being human as spiritual beings." This is, frankly, a ridiculous statement. From the pages of Genesis 2 we see:
[5] When no bush of the field was yet in the land and no small plant of the field had yet sprung up—for the LORD God had not caused it to rain on the land, and there was no man to work the ground, [6] and a mist was going up from the land and was watering the whole face of the ground—[7] then the LORD God formed the man of dust from the ground and breathed into his nostrils the breath of life, and the man became a living creature. [8] And the LORD God planted a garden in Eden, in the east, and there he put the man whom he had formed. [9] And out of the ground the LORD God made to spring up every tree that is pleasant to the sight and good for food. The tree of life was in the midst of the garden, and the tree of the knowledge of good and evil. (Genesis 2:5–9 ESV, emphasis mine)
Genesis is quite clear that God formed man and "animated" him. The breathing into man, gave him a soul, for that is what is meant by the text saying "the man became a living creature." In Hebrew this word is נֶ֫פֶשׁ (
nephesh) and it shows that the soul isn't some pre-existent thing; instead it comes into being in conjunction with the creation of Adam.
Furthermore, there is no place in scripture which states that Adam and Eve were, somehow, "spirit beings" before they sinned. That is preposterous, and it's the stuff fairy-tales, not biblical theology, are made of.
The Archangel