Matthew 24:1-3

1 And Jesus being come out of the temple, went away. And his disciples came to shew him the buildings of the temple.

2 And he answering, said to them: Do you see all these things? Amen I say to you, there shall not be left here a stone upon a stone that shall not be destroyed.

3 And when he was sitting on mount Olivet, the disciples came to him privately, saying: Tell us when shall these things be? And what shall be the sign of thy coming and of the consummation of the world?