They are common to all Abrahamic religions, in spirit if not word-for-word. Hinduism also has its 5 principles and 10 disciplines which are broadly similar.

Perhaps "secular" is not the best description, but for anyone faithful to any of the major religions, these are going to be broadly shared principles, in addition to being the basis for most of our laws and social norms regarding individual behavior (don't kill, don't steal, etc.)

It's kind of like having "In God We Trust" printed on our currency. It's not a specific (i.e. Christian) God, at least that is the justification, and it's not seen as "respecting an establishment of religion" in the Constitutional sense.

Even if you can find multiple religions that you claim agree on something that does *not* make that thing secular.

> Secularity [...] is the state of being unrelated to, or neutral in regard to, religion.