As he came out of the temple, one of his disciples said to him, “Look, Teacher, what large stones and what large buildings!” 2 Then Jesus asked him, “Do you see these great buildings? Not one stone will be left here upon another; all will be thrown down.”

3 When he was sitting on the Mount of Olives opposite the temple, Peter, James, John, and Andrew asked him privately, 4 “Tell us, when will this be, and what will be the sign that all these things are about to be accomplished?” 5 Then Jesus began to say to them, “Beware that no one leads you astray. 6 Many will come in my name and say, ‘I am he!’ and they will lead many astray. 7 When you hear of wars and rumors of wars, do not be alarmed; this must take place, but the end is still to come. 8 For nation will rise against nation and kingdom against kingdom; there will be earthquakes in various places; there will be famines. This is but the beginning of the birth pangs.

Mark 13: 1-8 (NRSV)