And I will put my Spirit in you and move you to follow my decrees and be careful to keep my laws. Ezekiel 36:27 NIV
After God gives us a new heart (see verse 26), He will make changes from the inside out. Our desire will be to follow Him and His commands (Exodus 20:1-17). We will want to keep His commandments, not because we have to. We are redeemed and will not want the old life anymore. His Spirit will guide us on a new path to life with Him.