Why were Nadab and Abihu punished for entering the Temple while intoxicated if they had not yet been commanded against it?

This source-based Torah study examines the question: Why were Nadab and Abihu punished for entering the Temple while intoxicated if they had not yet been commanded against it? The canonical Hebrew discussion develops the issue through the weekly Torah portion and the sources cited there, preserving the distinctions, tensions, and practical implications of the original text. This localized discovery layer does not add any new halakhic, medical, legal, scientific, historical, theological, or empirical ruling or claim beyond the canonical Hebrew source.