When Jesus spoke to the Jews, He was speaking to those of the Circumcision....obedience to the Law was understood by everyone but you, Jerry. Just because obedience wasn't mentioned in one particular verse you have gotten hung up on, doesn't mean it isn't there (understood by those addressed and the one addressing them).
This is what the Lord Jesus said to the Jews who lived under the law:
"It is the spirit that quickeneth; the flesh profiteth nothing: the words that I speak unto you, they are spirit, and they are life" (Jn.6:63).
What the Lord said here is either true or it is false. I say that His words did indeed bring spiritual life to the Jews who believed and lived under the law.
You say that His words are false because according to you His words by themselves cannot bring spiritual life to the Jews who lived under the law because they could not be saved apart from works.