“Truly I tell you, this generation will certainly not pass away until all these things have happened. Heaven and earth will pass away, but my words will never pass away.
“Be careful, or your hearts will be weighed down with carousing, drunkenness and the anxieties of life, and that day will close on you suddenly like a trap. For it will come on all those who live on the face of the whole earth. Be always on the watch, and pray that you may be able to escape all that is about to happen, and that you may be able to stand before the Son of Man.”
Each day Jesus was teaching at the temple, and each evening he went out to spend the night on the hill called the Mount of Olives, and all the people came early in the morning to hear him at the temple.
Luke 21:32-38 (NIV)