Bible Verses About The Deluge: (Unexpectedness of,) of suddenness of Christ's coming

But no one knows of that day and hour, not even the angels of heaven, but my Father only.

“As the days of Noah were, so will be the coming of the Son of Man.

For as in those days which were before the flood they were eating and drinking, marrying and giving in marriage, until the day that Noah entered into the ship,

and they didn’t know until the flood came, and took them all away, so will be the coming of the Son of Man.

They ate, they drank, they married, they were given in marriage, until the day that Noah entered into the ship, and the flood came, and destroyed them all.

Likewise, even as it was in the days of Lot: they ate, they drank, they bought, they sold, they planted, they built;

but in the day that Lot went out from Sodom, it rained fire and sulfur from the sky, and destroyed them all.

It will be the same way in the day that the Son of Man is revealed.