Parable of the Fig Tree
Mark 13 described a future tribulation for the entire Earth and with it the shaking of the heavens. Jesus described these events that will lead to his return and the setting up of the kingdom. He then told his disciples to be spiritually intelligent about the events of the day. He did this through a parable.
"Now learn the parable from the fig tree: when its branch has already become tender, and puts forth its leaves, you know that summer is near.
"Even so, you too, when you see these things happening, recognize that He is near, right at the door. (Mark 13:28-29)
He said that the events he described were imminent and just as the budding of the tree tells us that summer is near so his disciples were to recognize what these unfolding events meant. Then he said that he who is to come will be right at the door. The same phrase is used for Christians to expect the return of Jesus Christ at any time. For Israel they can expect the return of Christ to set up the kingdom after a great tribulation. But the church believers are told to wait expectantly because he can come at any time. Do we give time to meditate on his timely arrival?