The word 'invisible' in the Hebrew does not mean un-see-able. Moses spoke to the spirit Yahweh face to face as a man speaks to his friend. It means un-seen. Idols are seen but Israel had no idol to be seen. So, Yahweh was the un-seen God.
Yes the spirit known as Yahweh which entered the body of the baby Jesus when that mortal body died the spirit left the body and went into the spirit world to preach the gospel to those spirits held captive. After three days He then returned to his own body to raise it up.
Yes spirits can not die as in go into non-existence but it says he was
made a quickening spirit.
I have a little theory all of my very own, my Mormon friends will raise their eyebrows. When Adam partook of the fruit it changed his perfect body into a mortal body, there was a physical change. The Lord/Yahweh then placed the flaming sward and the Cherubims in the way so that mankind could not eat of the Tree of Life and live forever.
It says in Rev 2
To him that overcometh will I give to eat of the tree of life, which is in the midst of the paradise of God.
I believe that when Jesus entered paradise he ordered the removal of that flaming sword and Cherubims and he partook of that fruit making him a quickening spirit. Which I define as one having the power to return to a lifeless body and raise it up to life.
Revelation 22:14
Blessed are they that do his commandments, that they may have right to the tree of life,
I think and it's only a working theory that we each will partake of that Tree and thus be able to return to our own bodies to raise them up.
On the other hand, this could all be just symbolic and there is no real tree but it represents the love of God. It's okay.
How so?