No, I did not sin because that teaching was only for the Jews during the dispensation of the Law.
That's where you are wrong.. Jesus spoke the truth in LUKE 6:30.. What He said was good and true..
You're decision to believe that it is not good and true and decision to not aknowledge your failure to live up to that perfect standard means you are currently not being forgiven for your transgression against His Word..
John 6: KJV
62 "What and if ye shall see the Son of man ascend up where he was before? {63} It is the spirit that quickeneth; the flesh profiteth nothing: the words that I speak unto you, they are spirit, and they are life."