Joh 8:46 Which of you convicts Me of sin? And if I say the truth, why do you not believe Me?
I don't get the correlation.
Jesus challenges His enemies to convict Him of sin. It can't be done. Why? He is perfectly good.
So in the other verse, He is not Himself denying that He is good. He is calling the man to choose: either He is a mere mortal, in which case He cannot be absolutely good; or He is absolutely good, in which case He must be God.
Dan