The answer is: Mordecai would not bow down to him

Esther 3:5-6

Ah, the tale of Esther and Haman—you won't find a more dramatic showdown of power, pride, and profound, unintended consequences! Haman's desire to annihilate the Jewish nation stems from a single, significant incident: Mordecai’s refusal to bow to him. Can you believe it? One man's stubbornness ignited Haman's fiery ego.

But let's dig a little deeper. Haman is appointed as the highest official in King Xerxes' court, examining the art of power plays—think of it like being the CEO of an ancient empire. In every grand royal story, egos both great and petty ignite certain tempers, and Haman was not just a man of authority; he was steeped in ancient traditions related to honor and status.

Moreover, Haman belongs to an ancient enemy of Israel, the Amalekites, creating a blood feud backdrop that adds depth to the plot. The Amalekites were infamous for attacking Israelites in the wilderness after the Exodus. This connection transforms Mordecai’s stance into an act of history—he represents the Jewish people’s endurance against oppression.

Interestingly, throughout biblical narratives, the motif of Jewish perseverance against annihilation appears again and again—from Pharaoh to Haman, offering a reflection of resilience amid attempts at erasure. It's much more than a tale of one proud official; it's a significant chapter in the enduring saga of a people’s struggle to maintain their identity against formidable challenges. Would the unseen cosmic forces ultimately allow moral integrity to earn its due? Esther’s clever courage certainly opens debates about justice and divine order!