Be renewed in the spirit of your mind,
and put on the new man
which was created according to God,
in true righteousness and holiness.
(Ephesians 4:24)
Salvation includes the forgiveness of our sins. The stain of sin has been washed away by the blood of the Christ.
However, God has also dealt with the source of sin - our sinful hearts! God spiritually united us with Christ to crucify and bury our old spiritual hearts and to give us new hearts united with Christ in His resurrection!
The Greek words for creation and created in original manuscripts for the above verses mean that God has re-created us out of nothing to be brand new people! This is in contrast to our English word create that means, for example, to create an artwork using existing materials.
Therefore, God has not changed us to be better people, He has re-birthed us in His dear Son to be brand new people! We have the same old bodies and the same unique personalities. However, at the spiritual core of who we are, we are new creations in Christ!
NOT IMPROVED, BUT BRAND NEW!
The Greek word for new in the above verses (kainos) means to be brand new. This is in contrast to the Greek word for the word new that means a newer version of the same thing (neos). This world is based on this latter use, e.g., a new and improved product.
The old me passed away in Christ through His cross. The new me was re-born in Christ through His resurrection!
So, we have not been mended, we have been made new by our Creator. I love what John Wesley said: "Only the power that makes a world can make a Christian." Isn't that great?!
We have not just made up with God by being forgiven by Him after we tell Him we are sorry for our sins. He has made us brand new!
The photo below reminds me of my new birth resting in the strong arms of God my Father and Creator! You see, each of now is his child through a re-birth, a re-creation.