The answer is: Mount Gilboa

1 Samuel 31:1 - He died alongside his sons, including Jonathan

Saul’s final battle at Mount Gilboa holds both historical and symbolic significance in the Bible. This location isn't just a backdrop for the tragic end of Israel's first king, but it also underscores some heavy themes—victory vs. defeat, destiny, and the complexities of loyalty. Sāul's downfall came through a series of choices that broke his relationship with God. It's quite fascinating to note that the names 'Saul' and 'Gilboa' linger through the years. In fact, “Gilboa” literally translates to "the fountain of the gods," and it ironically became the scene of Saul's monumental loss rather than a fountain of glory.

The story also intertwines with themes that echo across different parts of Scripture, particularly reflecting on Jonathan’s bond of friendship with David. Their deep loyalty offers an underpinning that highlights the aching tragedy of Saul’s demise. Interestingly, Jonathan's allyship with David casts shadows over King Saul's reign, amplifying the personal conflict that ensued.

As a poignant detail, in the annals of Jewish history, Mount Gilboa is also associated with the valley of Jezreel — the setting for many biblical battles and prophecies. This battle impacted not only the immediate tribes of Israel but served as a divining point that would echo through the lifetime of David and the evolution of the Jewish monarchy. As the dust settled on Gilboa, the future shifted dramatically, demonstrating that in the spiral of balance between choices, loyalties, and divine will, outcomes can pivot tragically yet meaningfully.