Matthew 24:36-44 - The Unknown Day And Hour
36 And concerning that day and the hour no one hath known -- not even the messengers of the heavens -- except my Father only; 37 and as the days of Noah -- so shall be also the presence of the Son of Man; 38 for as they were, in the days before the flood, eating, and drinking, marrying, and giving in marriage, till the day Noah entered into the ark, 39 and they did not know till the flood came and took all away; so shall be also the presence of the Son of Man. 40 Then two men shall be in the field, the one is received, and the one is left; 41 two women shall be grinding in the mill, one is received, and one is left. 42 'Watch ye therefore, because ye have not known in what hour your Lord doth come; 43 and this know, that if the master of the house had known in what watch the thief doth come, he had watched, and not suffered his house to be broken through; 44 because of this also ye, become ye ready, because in what hour ye do not think, the Son of Man doth come.
32 And concerning that day and the hour no one hath known -- not even the messengers who are in the heaven, not even the Son -- except the Father. 33 Take heed, watch and pray, for ye have not known when the time is; 34 as a man who is gone abroad, having left his house, and given to his servants the authority, and to each one his work, did command also the porter that he may watch; 35 watch ye, therefore, for ye have not known when the lord of the house doth come, at even, or at midnight, or at cock-crowing, or at the morning; 36 lest, having come suddenly, he may find you sleeping; 37 and what I say to you, I say to all, Watch.'