If we can glimpse that words are just the foam on the tide, then the following might make sense:
The Ten Commandments--- in an era when man was sparse, speaking speciesously ----- and his linguistic talents fresh --- it made sense to carve rules in stone and expect their --- gravity to be adored---, pondered and used as rules for living.
The specifics, are still guidelines. My point is not that we stop honoring our mother and father, or any other shalts, ballots,or shalt nots.
But that, keeping in mind the fallacious either/or nature of language---
we glimpse some new guidelines that are only superficially contradictory.
Perhaps evil was once unambiguous,for good reasons, and say, abortion for instance, might even threaten the whole of mankind, if it became fashionable.
But I wonder if the focus of what is evil, now, might not be shifting. And now, the unambiguous evil, might be more what threatens the whole planet. Like some pesticides.
If I am correct, such unambiguity -- is there a better word --- will always be in a shifting state, but a shift which is imperceptible within one lifetime. And so there will come a time when planet threatening issues will change again.
Jan Cox would have pointed out that Life is not going to let anything too drastic happen anyway. Probably.