If you read the Old Testament or at least the first few books, it will tell you who God is. God is a jealous God. He hates idols. Idols are money, sexual practices and other things we worship rather than our creator. one Israelite was instantly consumed by fire for lighting incense out of order. God used to dwell among his people and even then they didn't believe and rebelled against him. Israel was his chosen people everyone else were considered unimportant because their SIN set them apart from God. Even Israel rebelled time after time. He gave them chance after chance. They rebelled he punished them. They repented after they were suffering, he had compassion and forgave them and took them back. Jesus preformed miracle after miracle right in front of their eyes and they still didn't believe him then they killed him. Only his followers believed him. How is it going to be different today? How long should he show people proof. Shall he not punish those who rebelled against him yesterday and today. If you don't fear God you will never please him. He created everything you see. Who are we to tell him we don't need to be disciplined. You can just love us without discipline,or jealously. We are willing to believe all the happy wonderful stories in the bible but wait a minute no we don't want to believe the discipline and punishment parts noooooo. That's not love. Does a father not discipline and punish his children. Do his children not fear him. Without fear there is no discipline,so the father that does this doesn't love his children. Even a human father has his limits on how many times he can continue to be rebelled against by his son and keep taking him back, but even after that if he repents he'll take him back. He wants you to repent and he will take you back unconditionally. Rebellion will get you punishment. How many chances will you give someone that sins against you before you cut them off from yourself. That's not love, I supose homosexuality, hating your brother,how many other sins need mentioned how is God Suposed to love us while we do this but he does. We certainly aren't showing him love will doing these things. God is the same God now that he was then. He hasn't changed. His anger burns against us unless we repent. He still loves us but he will punish us because he is a just God. He has provided us the one and only way to salvation. He has provided us not only the bible but he has put it in our hearts so we are without excuse. People will tell Jesus on the day of judgement but I did all these things I was supposed to do for you and he will tell them I don't know you and they will be thrown into the lake of fire, because it was put in their heart by God and they are without excuse. God has rules we must follow put him first and love one another if we can do that everything else falls into place and the blood Jesus shed on the cross will cover our sins as long as we confess them and repent. God is jealous and he is just. He hasn't changed. You want proof. Look deep in your own heart. It's there.
