The Trembling Over Chometz
On the last day of Pesach a doubt about chometz in his kitchen left the Rav pale and shaking, a sight a talmid never forgot.
A talmid of the Nitra yeshiva, who survived the camps and lived to tell it, used to recall a moment from Acharon shel Pesach. A shailoh (halachic question) had come up in the Rav's kitchen about possible chometz in his home.
The talmid saw the Rav's face turn deathly pale. His hands and feet trembled. The talmid said he had never seen such dread in a person's eyes.
He had seen a great deal of fear since then. In the war years he saw people who knew that the end might be near, and fear did not leave them for a moment. Yet he said that what he saw in the Rav's eyes that afternoon was greater than any of it.
Those who pass on the story understand the trembling as a kind of reverence. For Rav Shmuel Dovid, even a doubtful lapse in a mitzvah was a matter of real weight, because he felt every day that he stood before Hashem. It was not the fear of a man for himself. It was the fear of a servant who does not want to disappoint his King.
For the talmid the memory had one more edge. The man who trembled over a crumb of chometz was the same man who held to every halachah through the hunger of the forest.
Source: Dei'ah veDibur, "Sparks of Glory" (HaRav Shmuel Dovid Ungar, zt'l, the Rov of Nitra), 3 Nissan 5773 (14 March 2013). Told there by a Nitra talmid.
We often brush off small questions in halachah or in our dealings with others, telling ourselves it is probably fine. This week, choose one doubt you have been ignoring, a bracha you are unsure of, a promise you half made or a kashrus question, and settle it properly. Ask a rav or a knowledgeable friend. You do not need to tremble. You only need to care enough to find out, and that care is itself a way of standing before Hashem.