For some weeks in the past your influence has been improving; but you lack firmness of principle. You are deficient in many things, and in some things you must know where you fail. The follies of your youth have left their impress upon you; you can never recover what you have lost through impure habits. These things have so benumbed your sensibilities that sacred things are not clearly discerned. You cannot, with your present experience, resist temptation. You cannot endure trials. You are not sanctified through the truth. You have taken hold of the truth, but it has not taken hold upon you to transform you by the renewing of your mind. You are a self-deceived man. Oh, do not, I entreat you, remain deceived in regard to your true condition! You have not felt deep conviction because of your sins, and in humility sought the Lord with anguish of heart that your transgressions might be blotted out. You could not see that your ways were so sinful before God. Therefore the work of reformatio…
"For I delight in the law of God after the inward man: But I see another law in my members, warring against the law of my mind, and bringing me into captivity to the law of sin which is in my members."
Both passages discuss the internal struggle between the desire to do good and the pull of sinful nature.