You ARE a SPIRIT. You are not a body or a soul ... you just live in and use those. When you're finished with your body and leave in death, it goes back to the dirt it came from and you move on.
Jesus was the Example for us to see and know. He didn't have to do this for Himself ... He didn't have to be born again. He had a perfect spirit ... our spirits are not perfect until we are born again.
Our spirits are "dead", not dead in the sense that there's no life. We are just cut off from God during this period of our life.
When Jesus said that He only does what the Father says "do", He wasn't relying on His own ... He was relying on the Person of the Holy Spirit. We have the Holy Spirit in us, but our soul is perverted, corrupted, and flawed. So we don't always hear when the Holy Spirit is speaking to us, or we may hear incorrectly.
John 14:26 NLT ... "When the Father sends the Advocate as My Representative ... that is, the Holy Spirit ... He will teach you everything and will remind you of everything I have told you."
The Holy Spirit is God's Messenger. He's our Teacher. The Scripture says that He will bring all things to your remembrance. Where is this "remembrance"? It's in your spirit heart ... it's where God's Truths are stored.
A side note here: There's a misconception about eternal life. When you came down from Heaven as a spirit, you already have "eternal life" ... the spirit part of us never dies. The point is: Where are you going to spend your eternal life? People say: "Get saved and have eternal life." Yeah, I have eternal life, but mine is going to be spent in Heaven, not hell.
We must choose to change and go to Heaven. If we don't make this choice, we'll find that our place will be in hell, not Heaven ... because we didn't make our choice. If you do not choose Heaven, then it's automatic hell for your eternity. This is just the way it is. Heaven is not automatic ... it's a choice we make. I made this choice .... will you?
Reverend Robert W. & Mary C. Butler