جَوْهَرًا فَجَوْهَرٌ، أَوْ عَرَضًا فَعَرَضٌ
If considered a substance, then a substance; if an accident, then an accident.
“Substance” (jawhar) and “accident” (ʿaraḍ) are technical categories in classical kalām. “Eternal” and “originated” concern questions of beginning and temporal existence.
Their role here is to expose a particular thesis: a thing's status is supposedly fixed by what the observer believes rather than by the reality being described.
Contradictory classifications of one object call for investigation; they do not themselves make contradictory realities coexist.