I am reading Exodus. I’ve read through the plagues to the pass over of the angel of death to take every firstborn man and beast. God performed great miracles to prove to Pharaoh that He is God. God was purposeful to harden Pharaoh’s heart to not let the people go.
In times when belief in God is weak, disasters happen so that people are reminded of the might of God. I think God is urging every person to see that Revelation is true and must be an ever present thought so that when God does what He said he will do, believers will not be surprised. They will know that God is at work to deliver us once again.
Just like in the days that Arron and Moses spoke to Pharaoh, the bible is our guide to tell us again-God spoke, He is going to bring about disasters, we will see the end of Earth and when the Lord comes again we will be in expectation.