Mark 13:28-30 NIV

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.
29 Even so, when you see these things happening, you know that it is near, right at the door.
30 I tell you the truth, this generationa1 will certainly not pass away until all these things have happened.2

References for Mark 13:30