Jesus warned about the terrible things that will happen before he returns.

Luke 21:5-19

5 Some of Jesus’ disciples talked about the Temple. They commented about the beautiful stones used in building the Temple and the other decorations that people had given, decorations that were on the walls. But he said, 6 “I want to tell you something about these things that you are looking at. They will be destroyed {Foreign invaders will destroy these buildings} completely. Every stone in these buildings will be thrown down {They will throw down every stone in these buildings}. Not one stone will be left {They will not leave one stone} on top of another.”

7 Later his disciples asked him, “Teacher, when will that happen? What will happen to the temple to indicate that the things you(sg) just told us are about to happen?” 8 He said, “All that I will say is, be sure that you are not deceived {that they do not deceive you} about these things! Many people will come and say ◄that I sent them/that they have my authority► [MTY]. They will say, ‘I am the Messiah!’ They will also say ‘It is now the time when God will begin to rule!’ Do not follow them to become their disciples 9 Also, whenever you hear about wars and riots, do not be terrified. Keep in mind that God has said that those things must happen. But when they happen, it will not mean that the world will end right away!”

10 Then he said to them, “Groups in various countries will fight each other, and various governments will also fight against each other. 11 There will be big earthquakes, and in various places there will be famines and plagues. People will see things that will terrify them. There will also be unusual things happening in the sky. 12 But before all these things happen, some of you will be persecuted and arrested {people will persecute some of you and arrest you} [MTY]. Some of you will be put {They will put some of you} on trial in the places where you gather to worship, and you will be thrown into prison. You will be put on trial {They will put you on trial} in front of high government authorities because you are my [MTY] disciples. 13 That will be a time for you to tell them about me. 14 So determine within yourselves not to be worrying before that happens what you will say to defend yourselves, 15 because I will make you wise [HEN] so that you will know what to say. As a result, none of your enemies will be able to oppose what you say or ◄refute you/show that you are wrong►. 16 And there will also be other evil things that will happen: Even your parents and brothers and other relatives and friends who do not believe in me will ◄betray you/help your enemies to seize you►. They will kill some of you. 17 In general, most people will [HYP] hate you because you believe in me [MTY]. 18 But your souls will be absolutely safe [IDM]. 19 By enduring all these things people will do to you, you will preserve your eternal life [SYN].”