"Now learn a parable of the fig tree; When her branch is yet tender, and putteth forth leaves, ye know that summer is near: So ye in like manner, when ye shall see these things come to pass, know that it is nigh, even at the doors. Verily, I say unto you, that this generation shall not pass, till all these things be done. Heaven and earth shall pass away: but my words shall not pass away." - Jesus Christ (Mark 13:28-31)