Romans 7:18

7:18 For I know that nothing good lives in me, that is, in my flesh. For I want to do the good, but I cannot do it.

Romans 7:21-25

7:21 So, I find the law that when I want to do good, evil is present with me. 7:22 For I delight in the law of God in my inner being. 7:23 But I see a different law in my members waging war against the law of my mind and making me captive to the law of sin that is in my members. 7:24 Wretched man that I am! Who will rescue me from this body of death? 7:25 Thanks be to God through Jesus Christ our Lord! So then, I myself serve the law of God with my mind, but with my flesh I serve the law of sin.