“And there has already come to them from the news (i.e., of the events of history and previous nations) that which contains a (sufficient) deterrent”.
A carefully chosen set of major events from history—enough to awaken, restrain, and correct.
Naba’ requires verification and re‑examination until its excellence becomes distinctly clear — then one may say: Nabba’tuhu / Anba’tuhu (I informed him of Naba’).
عَنِ النَّبَإِ الْعَظِيمِ
From all occurrences in history, the Qur’an presents only what carries very high importance and purpose — what will be valuable on Judgement Day.
The particle “من” can indicate a part of a whole. Here, “from the news” signals that, out of the many events in world history, a select few were chosen.
Meaning: the news contains deterrence within it.
Meaning: the news is the very source of deterrence.
In summary, it is as if the message says: “Enough has been given to set you straight.”
The narratives are chosen to deter from disbelief and deviation — not to satisfy historical curiosity.
It was observed that while some debated signs (e.g., whether the moon split), many historical signs had already come that should have shaken them.