Matthew 24:32-44 (Also found in Mark 13:28-36and Luke 21:29-33)
Now learn a parable of the fig tree (and all the trees – Luke 21:29). When his branch is yet tender and puts forth leaves, you know that summer is near: So likewise when you shall see all these things, you know that it (the kingdom of God – Luke 21:31) is near, even at the doors.
Truly, this generation shall not pass till all these things are fulfilled. Heaven and earth shall pass away, but my words shall not pass away.
But no man knows of that day and hour, no, not the angels of heaven (neither the Son – Mark 13:32), but my Father only.
But as the days of Noah were, so shall also the coming of the Son of man be. For as in the days that were before the flood, they were eating and drinking, marrying and giving in marriage until the day that Noah entered into the ark, and knew not until the flood came and took them all away; so shall also the coming of the Son of man be.
Then shall two be in the field; the one shall be taken, and the other left. Two women shall be grinding at the mill; the one shall be taken, and the other left.
Watch therefore: for you do not know what hour your Lord comes. But know this, that if the goodman of the house had known in what watch the thief would come, he would have watched, and would not have suffered his house to be broken up.
Take heed, watch and pray: for ye know not when the time is. For the Son of man is as a man taking a far journey, who left his house and gave authority to his servants, and to every man his work, and commanded the porter to watch. Watch therefore: for ye know not when the master of the house comes, at evening, or at midnight, or at the cockcrowing, or in the morning: lest coming suddenly he find you sleeping. (Mark 13:33-36)
Therefore be ready: for in such an hour as you think not, the Son of man comes. (Matthew 24:44)
The gospel of Mark adds, “And what I say unto you I say unto all, Watch.” (13:37)