Luke 21:20, 22-38

“But when you see Jerusalem surrounded by [hostile] armies, then understand [with confident assurance] that her complete destruction is near.

for these are days of vengeance [of rendering full justice or satisfaction], so that all things which are written will be fulfilled. Woe to those women who are pregnant and to those who are nursing babies in those days! For great trouble and anguish will be on the land, and wrath and retribution on this people [Israel]. And they will fall by the edge of the sword, and will be led captive into all nations; and Jerusalem will be trampled underfoot by the Gentiles until the times of the Gentiles are fulfilled (completed). [Is 63:18; Dan 8:13] “There will be signs (attesting miracles) in the sun and moon and stars; and on the earth [there will be] distress and anguish among nations, in perplexity at the roaring and tossing of the sea and the waves, [Is 13:10; Joel 2:10; Zeph 1:15] people fainting from fear and expectation of the [dreadful]things coming on the world; for the [very] powers of the heavens will be shaken. Then they will see THE SON OF MAN COMING IN A CLOUD with [transcendent, overwhelming] power [subduing the nations] and with great glory. [Dan 7:13, 14] Now when these things begin to occur, stand tall and lift up your heads [in joy], because [suffering ends as] your redemption is drawing near.” Then He told them a parable: “Look at the fig tree and all the trees; [Matt 24:32, 33; Mark 13:28, 29] as soon as they put out leaves, you see it and know for yourselves that summer is near. So you too, when you see these things happening, know [without any doubt] that the kingdom of God is near. I assure you and most solemnly say to you, this generation [those living at that definite period of time preceding the second coming] will not pass away until everything takes place. Heaven and earth will pass away, but My words will not pass away. “But be on guard, so that your hearts are not weighed down and depressed with the giddiness of debauchery and the nausea of self-indulgence and the worldly worries of life, and then that day [when the Messiah returns] will not come on you suddenly like a trap; for it will come upon all those who live on the face of all the earth. But keep alert at all times [be attentive and ready], praying that you may have the strength and ability [to be found worthy and] to escape all these things that are going to take place, and to stand in the presence of the Son of Man [at His coming].” Now in the daytime Jesus was teaching in [the porches and courts of] the temple, but at night He would go out and spend the night on the mount that is called Olivet. And early in the morning all the people would come to Him in the temple to listen to Him.