There are ethics and behavioral norms established by societies. Sometimes, they are equivalent with some of the "sins" of the dominant religion of that society, but are quite separate from the religion. We don't have books of laws about "sins." We have torts, crimes and misdemeanors.
Sin is a religious construct, designed to keep people from violating the rules of the society where the religion developed. Using fear of retribution from the deity or deities of the religion to frighten people away from transgressions of those societal rules, even when nobody is watching, can be quite effective, but the definitions of the "sins" were created by the society, not by any deity.
Some definitions of crimes and misdemeanors are almost universal. Why? Because they cause some sort of harm to members of the society. Murder, theft, etc. So, those are sins as well as crimes in the religions of the society. Other things, like blasphemy, are purely religious in nature, and are not universal.
Religions are founded to codify the norms of a particular society. Deities are the scary entities that keep people from violating those norms, even if nobody's looking when they do. For millenia, it worked a treat. Today, not so much. Miscreants today aren't much afraid of supernatural punishers. The concept of "sins" has ceased to be useful in industrial and post-industrial societies.
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