This I say then, Walk in the Spirit, and ye shall not fulfill the lust of the flesh.
Galatians 5:16 (KJV)
Walking in the Spirit begins with right identification. We learn to identify with who we are in Christ rather than with who we used to be in the flesh. Jesus through His finished works has made us one hundred percent righteous in Him. When this becomes the reality of our hearts, it becomes the standard by which we live. Right believing and right identification leads to right living.