During the Sermon on the Mount, which was a sermon designed as an MTC lesson to the apostles, the Lord held a Q&A session (see the JST), and here is what He heard with respect to the Jewish leaders and their acceptance of the restored gospel:
And then said his disciples unto him, they will say unto us, We ourselves are righteous, and need not that any man should teach us.
[How many times have missionaries heard this response from Christian neighbors when presented with more of the gospel? We have a bible and need no more bible, etc?]