The answer is: Oak

2 Sam 18:9-10

In the dramatic confrontation between Absalom and his father King David, the encounter with the oak tree stands out not only because it marked a pivotal moment in the battle but also due to the symbolism that trees often carry in biblical narratives. Oaks are robust and enduring, valued for their strength—a quality that Absalom, in his ambition and audacity, underestimated.

When Absalom found his flowing locks caught in the oak, this physical entrapment mirrored his larger struggle against his father's authority and his broader ambitions. Oaks often symbolize endurance and faithfulness in biblical literature, yet here they serve to underscore the fragility of Absalom's aspirations. Instead of strength, his hair—a source of personal pride—turned against him, portraying the ironic twist of how pride often precedes a fall.

On top of the oak's significance, it’s fascinating to reflect on ancient Hebrew practices: trees were often seen as guardians of the earth and life. So, in this encounter, the mighty oak might be seen as an arbiter of divine will, foreshadowing the outcome of Absalom's rebellion. Worth noting is also the historical context of the oak as a sacred space—thinking of how prophets like Samuel conducted activities under trees can provide added depth. Ultimately, the story teaches that strong roots aren't enough to provide the protection one might assume and serves a solemn reminder of the consequences of internal discord within a family.