I suppose it is fear that I might be deceived or tricked into taking the mark.
Sometimes I worry we are already marked (but that’s anxiety).
Thank you for your reply.
You will not be tricked into taking the mark. It is years away, because there are many prophecies that have to happen first before the implementation of the mark begins. The great tribulation has to start first.
The great tribulation begins when there is an image made of the person called the beast and placed into a Jewish temple in Jerusalem - which is not built yet.
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Revelation the first three chapters are about how Christians are supposed to behave until Jesus comes for us.
Chapters 4 and 5, John is prepared to receive from Jesus the revealing of the end time events.
Chapter 6 is basically an overview of the seven years of Daniel 9's 70th week. And the rest of the chapters through Revelation 19, are the details of the events that take place over the seven years, mostly about what takes place during the second half of the seven years, ending with Jesus's glorious return.
The order of the events are understood by reading and studying the chapters, 6-19. And figuring out where the events go on the seven year timeline.
The best way to understand Revelation, the seven years, and the end times events is to study and understand the main arch villain of that time. Depending on what role he is in at the time, the person is called the little horn, the prince who come, the Antichrist, the revealed man of sin, the beast.
Here is a chart I made. The person has not yet entered his initial role, basically the leader of Europe. That is we don't know who he is yet.
If you are not familiar with Revelation and the end time prophecies in the bible, this chart could overwhelm you. But don't be discouraged. Just start reading and leaning what you can.