Background:
Absalom, the third son of King David, is a prominent figure in the narrative of 2 Samuel. Known for his striking appearance and charisma, Absalom's life is marked by familial conflict and personal ambition. His account is intertwined with themes of justice, revenge, and the complexities of familial relationships within the royal household of Israel.

The Incident:
The catalyst for Absalom's vengeance is the grievous act committed by his half-brother Amnon. Amnon, the eldest son of David, becomes infatuated with his half-sister Tamar, Absalom's full sister. In a calculated move, Amnon deceives and violates Tamar, leaving her desolate and disgraced. The account is recorded in 2 Samuel 13:1-14, where Amnon's actions are described in stark detail, highlighting the violation and its impact on Tamar.

Absalom's Response:
Upon learning of the assault on his sister, Absalom harbors deep anger and resentment towards Amnon. Despite his fury, Absalom initially remains silent, neither speaking to Amnon nor revealing his intentions. This silence is strategic, as Absalom bides his time, waiting for the opportune moment to exact his revenge. The narrative in 2 Samuel 13:20-22 captures Absalom's calculated patience and the simmering tension within David's family.

The Act of Vengeance:
Two years after Tamar's violation, Absalom seizes the opportunity to avenge his sister. He invites all the king's sons to a sheep-shearing festival at Baal Hazor, a festive occasion that provides the perfect cover for his plan. During the festivities, Absalom orders his servants to strike Amnon down when he is in high spirits from wine. The execution of this plan is swift and decisive, as recorded in 2 Samuel 13:28-29: "Now Absalom had commanded his young men, 'Watch Amnon until his heart is merry with wine, and when I say to you, "Strike Amnon down," then kill him. Do not be afraid. Have I not commanded you? Be strong and courageous!' So Absalom’s young men did to Amnon as Absalom had commanded."

Aftermath:
Following Amnon's murder, Absalom flees to Geshur, seeking refuge with his maternal grandfather, King Talmai. His flight marks the beginning of a period of estrangement from his father, King David, who mourns the loss of Amnon and the fracturing of his family. The narrative in 2 Samuel 13:37-38 details Absalom's exile and David's grief: "Absalom fled and went to Talmai son of Ammihud, the king of Geshur. And David mourned for his son every day. After Absalom had fled and gone to Geshur, he stayed there three years."

Significance:
Absalom's act of vengeance is a pivotal moment in the history of David's reign, setting off a chain of events that lead to further conflict and tragedy within the royal family. It underscores the themes of justice and retribution, as well as the personal and political ramifications of unchecked familial discord. The account of Absalom's vengeance serves as a cautionary tale about the destructive power of revenge and the complexities of human relationships.