It's been spoken in the Bible that before Jesus comes, there are many signs of the end times which will come to reality,famines,calamities,war,human-animal marriage, higher technologies,etc. We will also recognize Jesus' coming when  every person in every corner of the world has heard the good news.

The Bible says that during the Rapture,everyone will hear a trumpet sound and He will appear in the sky together with His angels where He will meet His followers and believers.