I wonder if the irony of paraphrasing Christ was intentional? I suspect that you have learned this idiom without realizing its origins.
No, that's not true, at least for ibrahimic religions
For example, Moses, Jesus, Mohammed.
These people didn't create the religion, they were reciting what god said to them, either through their actions or directly writing what was said to them.
You might say, "but there were changes to the books after these messengers!" Yes, but not in the case of Islam.
But the basic premise is the same, these are God's religions, one prays to god, not to its Prophets.