For just like the days of Noah were, so the coming of the Son of Man will be. For in those days before the flood, people were eating and drinking, marrying and giving in marriage, until the day Noah entered the ark.

the son of Cainan, the son of Arphaxad, the son of Shem, the son of Noah, the son of Lamech,

Just as it was in the days of Noah, so too it will be in the days of the Son of Man. People were eating, they were drinking, they were marrying, they were being given in marriage -- right up to the day Noah entered the ark. Then the flood came and destroyed them all.