Character Flaws vs. Halachic Violations in Yaakov's Rebuke of Reuven

The shiur begins by examining three fundamental questions about Yaakov's rebuke of Reuven in Parshas Vayechi. First, why does Yaakov remind Reuven of his sin when halacha (הלכה) forbids reminding a baal teshuvah of past transgressions, especially given that Reuven had been doing serious teshuvah for forty years? Second, what connection exists between Reuven's particular sin and losing kehunah and malchus? Third, why does Yaakov criticize Reuven for being hasty ('pachaz kamayim') rather than for the deliberate nature of his sin, when thoughtful sins are typically considered worse than impulsive ones? The analysis draws a parallel to the story of Natan's rebuke of Dovid Hamelech through the parable of the rich man stealing from the poor man. When Dovid declares that the rich man deserves death for stealing the poor man's only sheep, this reveals a fundamental principle: while halachically, stealing from rich and poor may carry identical penalties, the character destruction involved in stealing from a poor person is infinitely worse. The amount of cruelty and selfishness required to take everything someone has, especially something with deep emotional attachment, reveals a level of evil that goes beyond mere monetary theft.