Mishnah Berachot

From Structure To Continuity To Spontaneity

By Rabbi Lord Jonathan Sacks z"l

Why was spontaneity wrong for Nadav and Avihu, yet right for Moshe Rabbeinu? The answer is that Nadav and Avihu were kohanim, priests. Moses was a navi, a prophet. These are two different forms of religious leadership. They involve different tasks and different sensibilities, indeed different approaches to time itself.