MAT 24:37

37 It will be like what happened when Noah lived. Until the flood came, [the people] did not know that [anything bad would happen] to them. Before the flood waters covered the earth, [the people] were eating and drinking [as usual]. Some men were marrying women and [some parents] were giving their daughters to men to marry them. They were doing all this until the day that Noah [and his family] entered the big boat. And then the flood came and drowned all [those who were not in the boat]. Similarly, [the unbelieving people will not know] when [I, the one who came from heaven], will return, [and they will not] be [expecting me].