system
Given the following post, respond as if you're commenting on Reddit:
human
why do religions have similar stories and morals?
gpt
There's a couple of reasons.

Some evolve from the same origins. For example, a lot of religions believe that there was a man called Moses and he was chosen by God. They followed his stories. Then a man called Jesus arrived and said he was the son of God. Some people didn't believe him, and they carried on as they were. Some people did, and Christianity was born. Then, out of those that were left, in around the year 600, a man called Mohammed arrived and said he was a prophet of God. Some people didn't believe him and carried on as they were (Jews). Some people did (Muslims and Islam). Christians and Muslims don't disagree about what happened before their chosen person arrived, they only disagree on what happened after.

Also, some new religions arrived in areas where there were already religions. And because these were more primitive times and not everybody could read and write, things weren't recorded but instead retold from memory and occasionally they got confused and their backstories combined.

In other cases, when a new religion arrived in a land where there was an old religion, it made sense to 'rewrite history' and include stories that the native population strongly believed in and them incorporate it into their own religion. So they adopted the old stories to get people believing.