
THERE IS A minhag for tzaddikim to fast on Rosh Chodesh Nissan, even though we normally do not fast on a Rosh Chodesh. The reason for the exception? Because it was the day that Nadav and Avihu were struck down by God for bringing a “strange fire” on the eighth day of the inauguration ceremony. Just like that one of the happiest days in Jewish history became one of the saddest.