Religions are the death of the universal, timelessness, truth, and ethics of your quest. They, and other notions such as nation states, define us within boxes therefore destroying much of what we have as universal, truth, and ethical.
Also, humanity changes all the time, there are new thoughts that allow us to look at the world differently all the time. Would we, therefore, want to be restricted by certain so called "truths" and "ethics"? Perhaps I would say that one should never kill or steal, but I am not sure what I would do in certain situations to ensure my survival and my living for a longer period of time. I probably would steal and maybe even kill.
So, I seem to be saying that I do not think there are universal timeless truths and ethics. I am certainly saying religions are certainly not the safe-keepers of any of those things should they exist.