Romans 7:21 - 7:25
21 I find then the principle that in me evil is present—in me who wants to do good. 22 For I joyfully concur with the law of God in the inner man, 23 but I see a different law in my members, waging war against the law of my mind and making me a captive to the law of sin which is in my members. 24 Wretched man that I am! Who will deliver me from the body of this death? 25 Thanks be to God through Jesus Christ our Lord! So then, on the one hand I myself with my mind am serving the law of God, but on the other, with my flesh the law of sin.