Mark 13:28
Now learn this lesson from the fig tree: as soon as its twigs get tender and its leaves come out, you know that summer is near — the fig tree lesson is the Olivet Discourse's parable. The fig tree's spring signs (tender twigs, emerging leaves) are reliable predictors of summer: you know summer is near when you see them. Similarly, the signs described in the discourse are reliable predictors of the coming of the Son of Man — when you see them, you know it is near.