According to apostle Paul, when we accept Jesus as our Savior, we are in Christ. We are new creations. All things become new in our lives.
2 Corinthians 5:17 Therefore, if anyone is in Christ, he is a new creation; old things have passed away; behold, all things have become new.
The moment we accept Jesus as our Savior, the Holy Spirit joins us to Jesus Christ. We become one with Him for all eternity.
Old Things Passed Away
When we become “in Christ,” old things pass away. That means parts of us which existed before, no longer exist. Those parts spoken of as the “old things” die. At the same time, there is rebirth – a new spirit person is born.
All Things Become New
A new believer is no longer the person he or she used to be. That person no longer exists. That person has passed away. All things have become new.
How surprising it would be if when we were showing off a new born baby, someone asked, “But what about this baby's past?” You would answer, “This baby has just been born. He has no past!” It is the same when the devil comes to remind us of our past failures and sins before we were born again. That part of our old life has passed away. It no longer exists! As new creations, we have no past for the devil to bring accusations against.
Paul wrote, “Old things have passed away! All things have become new!”
When Jesus talked to Nicodemus,
He said you must be born again. John 3:7 Do not marvel that I said to you, “You must be born again.”
At first, Nicodemus thought Jesus was talking about the need for his body to be born again. Then, Jesus made it clear that the part of mankind which was to experience the new birth was not the body or the soul. It was the human spirit.
John 3:5,6 Jesus answered, “Most assuredly, I say to you, unless one is born of water and the Spirit, he cannot enter
the kingdom of God. That which is born of the flesh is flesh, and that which is born of the Spirit is spirit.”
A New Spirit
At the moment of salvation, our newly created spirit is perfect. It will never become more perfect or righteous than at that moment. The spirit is the part of us that will live forever. It is the part that is conscious of God's presence. The believer's spirit is the part that can fellowship with God because it is as righteous as God is righteous. The “stony heart” is gone! God has given us “a heart of flesh.” He has given us a heart that is soft, tender, and loving. He has given us a heart that desires to live unto righteousness.
Ezekiel 11:19 Then I will give them one heart, and I will put a new spirit within them, and take the stony heart
out of their flesh, and give them a heart of flesh.
Our spirits are perfect in Jesus. God wants to restore our souls through the renewing of the mind. God wants to restore our bodies to perfect health. At the instant of salvation, we became a new creation. The body (bone, flesh, and blood) and soul (intellect, will, and emotion) weren't completely changed, but the spirit became new and perfect at the moment of salvation.
Paul wrote some interesting words to the Philippians – “Work out your own salvation.”
Philippians 2:12 Therefore, my beloved, as you have always obeyed, not as in my presence only, but now much
more in my absence, work out your own salvation with fear and trembling.
We know that salvation is free; and this verse seems to conflict with others until we understand that at the moment of salvation, our spirits are made perfect in Christ. From that time on, our spirits are working with the Holy Spirit to conform our minds and bodies to the image of Christ. They are being changed daily. Our salvation is working out through our minds and our bodies.
Philippians 2:13 For it is God who works in you both to will and to do for His good pleasure.