And the people [i.e., of Noah's day] did not know [when it would happen] until the Flood came and swept them all away. It will be the same way when the presence of the Son of man [arrives].

Jesus says to them, Did you never see in the Writings, The stone which the builders put on one side, the same has been made the chief stone of the building: this was the Lord's doing, and it is a wonder in our eyes?