I know not (ου γινωσκω). "I do not recognize" in its true nature. My spiritual perceptions are dulled, blinded by sin (2. Corinthians 4:4). The dual life pictured here by Paul finds an echo in us all, the struggle after the highest in us ("what I really wish," ο θελω, to practise it steadily, πρασσω) and the slipping into doing (ποιω) "what I really hate" (ο μισω) and yet sometimes do. There is a deal of controversy as to whether Paul is describing his struggle with sin before conversion or after it. The words "sold under sin" in verse Romans 7,14seem to turn the scale for the pre-conversion period. "It is the unregenerate man's experience, surviving at least in memory into regenerate days, and read with regenerate eyes" (Denney).