If any Believer tries to do what the scripture says do in their own will-power, strength, and ability, the sin nature that was made dormant (not eliminated) when you where born-again, will be activated (the works of the flesh will manifest - Gal. 5:19-21). The Law says do - Grace says done.We do not agree.
Romans 6:2
How shall we, that are dead to sin, live any longer therein?
Romans 6:6
Knowing this, that our old man is crucified with him, that the body of sin might be destroyed, that henceforth we should not serve sin.
The proof that the sin nature was not eliminated is we continue to die and get sick!