Galatians 3:26-27. ‘For ye are all the children of God by faith in Christ Jesus. For as many of you as have been baptized into Christ have put on Christ.”
We become joint-heir with Jesus Christ as children of God when we put our faith in His death and resurrection as our only hope of salvation. The baptism in verse 27 is not water baptism. Rather, it is that function of the Holy Spirit by which we are baptized into Christ and into His body when we receive Him by grace through faith. When we do so, it is as if we had taken off the old, tattered garment of sin and replaced it with the pure white robe of Jesus Christ. We become new in Him.
There is a change.