Strictly speaking, even today not everyone believes in God, although something less than half the world's population at least nominally believes in him.
Hebrew belief in 'Elohim (God), as the chief God of the Hebrew nation, began prior to 1000 BCE. Using the more common spelling, 'El was regarded as the chief god and father of the gods by many of the north-western Semitic nations around the area now known as Palestine. Some time early in the first millennium BCE, a new God, previously unknown among the north-western Semitic people and probably originating in Midian, was introduced to Judah and then Israel. This new God, Yahweh (bibl. Hebrew : YHWH) soon became the national God of Israel and Judah. Some time later, Yahweh was identified as the same God as Elohim (or El). Although other gods continued to be worshipped for centuries to come, This was the period when belief in God, combining the earlier separate deities Elohim and Yahweh, originated.
No, everyone does not believe in God. There are those that believe there is no God or gods, those that believe there is a possibility that God or gods may exist but haven't committed themselves to full on believing, and those that believe not only in one God, but many.
they would start believing that god created chance
Monotheism is the practice of believing in one god, polytheism in two or more gods. pantheism believing in gods in everything, atheism believing in no god.
beliveing god is just beliveing but beliving in god is better
The universe was made by god. Everyone should know that.
Not exactly. The original sin doctrine teaches that all were born with a nature of sin or guilt, and separation from God. It doesn't mean the same as blaming victims or believing that everyone is guilty of something. You might be born with the same sin nature as a murderer, but you might never even be temped to kill. The original sin doctrine is more about the separation from God part than any specific acts.
You wouldn't reject God if you were believing in Him. If you were truly believing in Him, you wouldn't reject Him at all, if you did, you would go to Hell because you weren't actually believing in Him fully.
The Arabic term for believing in one god is "Tawhid". It refers to the concept of monotheism, the belief in the oneness of God in Islam.
by believing a god
no it is not because allah is god.
Believing in miracles simply means believing what God says in His word. If a person believes God's word and His witness about what happened they already have faith. They will also realize that God is in charge and that miracles do not have to happen when we want but they will happen when God wants.
Not everyone stopped believing in Him. There are still quite a few people that believe in and worship Him.