Gospel according to Luke 21: 29-33
Jesus said to his disciples, «Look at the fig tree and all the trees. As soon as their buds sprout, you know that summer is already near. In the same way, as soon as you see these things happening, you know that the kingdom of God is near. Truly, I tell you, this generation will not pass away, until all this has happened: heaven and earth will pass away, but my words will not pass away».