Matthew 24:36-44 - The Unknown Day And Hour
36 "But as to that day and the exact time no one knows--not even the angels of heaven, nor the Son, but the Father alone. 37 For as it was in the time of Noah, so it will be at the Coming of the Son of Man. 38 At that time, before the Deluge, men were busy eating and drinking, taking wives or giving them, up to the very day when Noah entered the Ark, 39 nor did they realise any danger till the Deluge came and swept them all away; so will it be at the Coming of the Son of Man. 40 Then will two men be in the open country: one will be taken away, and one left behind. 41 Two women will be grinding at the mill: one will be taken away, and one left behind. 42 Be on the alert therefore, for you do not know the day on which your Lord is coming. 43 But of this be assured, that if the master of the house had known the hour at which the robber was coming, he would have kept awake, and not have allowed his house to be broken into. 44 Therefore you also must be ready; for it is at a time when you do not expect Him that the Son of Man will come.
32 "But as to that day or the exact time no one knows--not even the angels in Heaven, nor the Son, but the Father alone. 33 Take care, be on the alert, and pray; for you do not know when it will happen. 34 It is like a man living abroad who has left his house, and given the management to his servants--to each one his special duty--and has ordered the porter to keep awake. 35 Be wakeful therefore, for you know not when the master of the house is coming--in the evening, at midnight, at cock-crow, or at dawn. 36 Beware lest He should arrive unexpectedly and find you asleep. 37 Moreover, what I say to you I say to all--Be wakeful!"