God’s wrath has been revealed throughout history. It has been demonstrated or revealed throughout history. We have seen many examples of his wrath mixed with mercy and grace. Romans 1:18 says, “The wrath of God is being revealed from heaven against all the godlessness and wickedness of men who suppress the truth by their wickedness.” It’s being revealed right now. Why does God show us some demonstrations of his wrath in history? To warn us. To teach us that one day God is going to judge sin.