Atheists, scientists and Catholics reject "The Flood" despite its being right there in the Bible.
Ge:7:11: In the six hundredth year of Noah's life, in the second month, the seventeenth day of the month, the same day were all the fountains of the great deep broken up, and the windows of heaven were opened.
Ge:8:2: The fountains also of the deep and the windows of heaven were stopped, and the rain from heaven was restrained;
Christians have never doubted that God created the Earth and all that it in in and when He saw the wicked ways of man, he destroyed His Creation and started afresh with Noah.
But where did the water come from? And where did it go?
After millennia of arguing with obstinate idiots, eventually, the scientists at least have conceded that the Bible is correct - there are "Fountains of the Deep!"
Of course, they can't just come out and say that directly - they have to mix it up with mumbo-jumbo but the following is probably as close to a a confession as we will receive this side of the last trump!
I refer you to
https://www.sciencedaily.com/release...1114132013.htm
Seismic study reveals huge amount of water dragged into Earth's interior
Slow-motion collisions of tectonic plates under the ocean drag about three times more water down into the deep Earth than previously estimated
[...]
"People knew that subduction zones could bring down water, but they didn't know how much water," said Chen Cai, "This research shows that subduction zones move far more water into Earth's deep interior -- many miles below the surface -- than previously thought," [...] "Previous estimates vary widely in the amount of water that is subducted deeper than 60 miles,"
[...]
Ocean water atop the plate runs down into the Earth's crust and upper mantle along the fault lines that lace the area where plates collide and bend. Then it gets trapped. Under certain temperature and pressure conditions, chemical reactions force the water into a non-liquid form as hydrous minerals -- wet rocks -- locking the water into the rock in the geologic plate. All the while, the plate continues to crawl ever deeper into the Earth's mantle, bringing the water along with it.
[...]
For the Mariana Trench region alone, four times more water subducts than previously calculated.
[...]
"If other old, cold subducting slabs contain similarly thick layers of hydrous mantle, then estimates of the global water flux into the mantle at depths greater than 60 miles must be increased by a factor of about three," Wiens said.
And for water in the Earth, what goes down must come up. Sea levels have remained relatively stable over geologic time, varying by less than 1,000 ft.
(Note how that last paragraph reinforces God's promise not to flood the Earth again!)