The Ten Commandments Aren’t Commandments
The Ten Commandments — listed in Exodus 20 and again in Deuteronomy 5 — aren’t called commandments in the original Hebrew or in the Greek LXX.
In Hebrew, they are d’varim in Exodus 20, either “things” or “words.” (This dual use of d’varim is a bit like “things” in English — I can own ten things or tell you ten things.)
To the best of my knowledge, of the major translations only the NAB renders the Hebrew as “commandments” in Exodus 20.
For that matter, the number “10” doesn’t come from Exodus 20 or Deuteronomy 5, but rather from Exodus 34:28 and two other places in Deuteronomy. There, the KJV and other translations (NIV, ESV, NAB, NRSV, and others) translate “ten d’varim” as “ten commandments,” sometimes capitalizing the phrase and sometimes with a note that the Hebrew doesn’t say “commandments.”
(Later Jewish tradition would replace d’varim with dibrot, which also doesn’t mean “commandments.”)
Two questions come to mind: Should we keep calling these the “ten commandments” even though that doesn’t seem to be what they are in the Bible? And is the NAB justified in its translation decision?