Let's un-parse your assertion:
"... I agree that one must be born again, that one must run patiently the race set before us, and that one must endure to the end. I also agree that one cannot do any of these things on his own merits." Logophile
Do you believe that one must FIRST be born again, THEN run the race set before us? Do you believe that 'endure to the end' refers to running the race AFTER being born again? I posted the passages from Romans 8 because you seem confused. Can you answer the above questions directly?
Yes.