Fisherman,
I answered your question. These texts are originally Marcan.
For those unaware what happened earlier in this thread, Fisherman's first post involved a quote from Jesus' conversation with the Pharisees regarding the nature of the Kingdom of God. It is found at Luke 17:20-37. Note that Fisherman only quoted verses 29-31 and offered no citations or contextual background.
All mainstream textual scholars agree that Luke added verses 22-32 into the conversation from Marcan sources. To illustrate.
According to the 100 plus scholars who worked on the official United States Catholic Bible, the NABRE, the footnote to these verses state:
Luke has also appended further traditional sayings of Jesus about the unpredictable suddenness of the day of the Son of Man, and assures his readers that in spite of the delay of that day..., it will bring judgment unexpectedly on those who do not continue to be vigilant.--Italics added.
It isn't that scholars aren't saying that Jesus never said these things, but that Jesus never made this prediction at this time. This is a Lucan addition made to condemn the Pharisees, and by extension the Jews due to this anti-Jewish sentiment the early Church had toward their Hebrew brethren.
Luke was trying to state that Jesus was predicting judgments specifically upon the non-Christian Jews, but as scholars point out, the shift in wording is clearly lifted from Marcan vocabulary. Luke was a Greek and wrote very differently.
I stated all this already, but used different sources. The conclusions are still the same. I have definitely stayed in point and definitely replied to your post.