In Christ Jesus neither circumcision nor uncircumcision avails anything, but a new creation. Galatians 6:15 (NKJV)
English author William Temple explained the Spirit-controlled life this way:
It is not good giving me a play like Hamlet or King Lear and telling me to write a play like that. Shakespeare could do it; I can’t. And it is not good showing me the life of Jesus and telling to live a life like that. Jesus could do it; I can’t.
But if the genius of Shakespeare could come and live in me, then I could write plays like that. And if the Spirit of Jesus could come and live in me, then I could live a life like that. It is not that we should strive to be like Jesus, but that He by His Spirit should come and live in us.