In Romans 8:12-13 Paul continues adding to his thoughts.
He now begins telling us what it looks like to live a life of living by the Spirit rather than living enslaved to the desires of the flesh.
We don’t have to live by the flesh anymore. Through Jesus you and I can live real life right now. Jesus will be with us by his Spirit giving us life, now. Follow him.
If we want this life, then, Paul says, we ought to jump into it following Jesus with every fiber of our being.