It goes on to say...The life which I now live in the flesh, I live by the faith of the Son of God, who loved me and gave Himself for me. Even though we live in the flesh, we do not have to give in to the desires of the flesh, because of our faith in Jesus. Because He loved us and gave Himself for us, we can live the way he would have us to live.
There will always be temptations while we live on this earth, but because Jesus lives in us, we can overcome the desires and temptations by looking to him and asking for His help. So, if you are tempted to give in to the desires of the flesh, remember that you are crucified with Christ and He lives in you. Ask Him for help and believe me, He will come to your aid and help you to overcome whatever you are facing.