No, we do not ignore them. Rather we interpret them in the context of the covenant they were said, who he was addressing, and the time frame he spoke of.
Jesus told his disciples in
Matthew 23....
Post Calvary/Pentecost do we teach New Covenant saints to obey Pharisees? No. Thus the context of who Jesus was addressing and the times involved must be understood so as not to misapply this commandment. Jesus was speaking to Jews under the Law.
What about this commandment of Christ to the leper he healed?.....
Brother Perez, does Moses still command lepers to go show themselves to priests when God heals them? No. There are no levitical priests in existence in our time. Yet this was a command we find in the "New Testament", but it was made under the Law before the New covenant was implemented and applied to Jews. The same must then be said of Jesus, words in
Matthew 23:23....
He is addressing "
teachers of the Law" who were still under the Law. He is not addressing New Covenant saints. If he is, then please explain why
Matthew 23:1-3 and
Luke 5:14 do
not apply to us.
So I'm afraid your point simply is not valid. In
John 3 Jesus spoke prophetically of a new birth that would happen only after he had been lifted up as the serpent was lifted up,and after he was glorified and poured out the Holy Ghost. Jesus was also speaking prophetically in John4 and
John 7 of this same event yet to come.
The fact that he was speaking to a Pharisee in
John 3 is irrelevant because he was speaking of the New Covenant yet to come. In
Matthew 23 he was not speaking of things to come but of the Law the Pharisees were still under and had failed to apply properly.