Matthew 24:36-44 - The Unknown Day And Hour
36 "But concerning that day and hour no one knows--not even the angels of heaven nor the Son--except the Father alone. 37 For just as the days of Noah [were], so the coming of the Son of Man will be. 38 For as in the days before the flood they were eating and drinking, marrying and giving in marriage, until the day Noah entered into the ark. 39 And they did not know [anything] until the deluge came and swept [them] all away. So also the coming of the Son of Man will be. 40 Then there will be two men in the field; one will be taken and one left. 41 Two women will be grinding at the mill; one will be taken and one left. 42 Therefore be on the alert, because you do not know what day your Lord is coming! 43 But understand this: that if the master of the house had known what watch of the night the thief was coming, he would have stayed awake and would not have let his house be broken into. 44 For this [reason] you also must be ready, because the Son of Man is coming at an hour that you do not think [he will come].
32 "But concerning that day or hour no one knows--not even the angels in heaven nor the Son--except the Father. 33 Watch out! Be alert, because you do not know when the time is! 34 It is like a man away on a journey, who left his house and gave his slaves authority--to each one his work--and to the doorkeeper he gave orders that he should be on the alert. 35 Therefore be on the alert, for you do not know when the master of the house is coming--whether in the evening, or at midnight, or when the rooster crows, or early in the morning-- 36 lest he arrive suddenly [and] find you sleeping. 37 And what I say to you, I say to everyone: Be on the alert!"