Biblical can mean many things. It could mean that we are going to receive a revelation as predicted in scripture. It could just mean that whatever message humanity is about to receive will use the methods of transmission available in those times we call Biblical. Perhaps there will be no media or social media involved or available. We will all hear with our ears, see with our eyes and understand with our soul. "Nothing can stop what is coming" would mean just that. Perhaps it is time to take a break from trying to find out. Wait for the event to happen, then we can all work out what it was in the time it takes for the first messenger to arrive (at the speed of a horse) to explain.