One of the biggest problems of mankind is that we never see God and we cannot see Him. But in majority, we believe that He exists. The bible said that He is the creator of heaven and earth . so the only way to see him is when you begin to analyse all his creatures. When you check the things he created you will see that is not man made. For example something like the sea, earth, air, water, Mystery of pregnancy..... There are a lot of creatures that are revealing who God really is to us. Today we are enjoying all that God created and we exist by them but we still say there is no God. We mock Him, we even misuse and take no care of the creation.
Many people have decided to accept that there is no God . Some too, frustration has caused them to understand that God never exists. So God is forced show himself to men .Remember that in the bible He revealed himself to the Esraelite when they were worrying Moses to see God, through earthquake, thonthering, fire and strong winds and the same way He shows himself to Elijah
mountain. Any man or country that doesn't believe that He exists, will see Him this manner.