Jesus said, "I am the way, the truth and the life." It is better to stick with the truth; wherever it may lead.
There was an ancient Babylonian story about a man and his family who were saved from a coming flood by advance warning from God. It was based on earlier versions of the story dating back to about 2000 years BC. The hero was not named Noah in these stories but Ziusudra, Atrahasis and Gilgemesh. In the Sumerian flood legend, Ziusudra heard a voice through the wall of his house telling him that a huge flood was coming. He was instructed to build a boat. Ziusudra built the boat. When the flood came he escaped with his family and some farm animals. The important thing to learn is that an omnipotent God may warn people in advance of coming disaster and give them ways to escape.
Jesus' referred to the Bible story:
Matthew 24:37-39 (KJV - Copyright Expired)
37 But as the days of Noah were, so shall also the coming of the Son of man be.
38 For as in the days that were before the flood they were eating and drinking, marrying and giving in marriage, until the day that Noe entered into the ark,
39 And knew not until the flood came, and took them all away; so shall also the coming of the Son of man be.
While researching ancient flood legends, I learned that the Euphrates and Tigris Rivers used to flood every year; sometimes severe enough to kill people and livestock. The flooding coincided with spring snow melt in the high mountains near the sources of the rivers. Modern dam building has reduced the incidence of catastrophic spring flooding.