{I know not} (ou gin(9373)k(935c)). "I do not recognize" in its
true nature. My spiritual perceptions are dulled, blinded by sin
( 2Co 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," ho thel(935c), to practise it steadily, prass(935c)) and the
slipping into doing (poi(935c)) "what I really hate" (ho mis(935c)) 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  14  seem 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).