Half banana: Actually there is no record of Jesus having ever uttered a word.
All we have are words and sentences attributed to him a generation after he was supposed to have lived. There are no eye witnesses from Roman documents of the Bible's account of a miracle worker who could bring back the dead, let alone any verbatim records of his speech.
So by dwelling on what this fictional character said, this speculates on an existing myth and worst still it reinforces a credibility in the minds of those fixated by Christianity. After all if a person is quoted he must have lived?
Do you believe Socrates and Plato existed? If you do, what evidence supports your belief?
Most historians believe Jesus of Nazareth existed as a historical figure, whether or not he became mythicized over time. The Christ myth theory is a fringe theory which deviates from the mainstream historical view.
There is more evidence to support that Jesus existed as a historical figure than many of the other historical figures you probably accept as having really existed. Unless you're one of those people who believe the moon landing was fake.