This formidable Aramean ruler controlled Zobah, a significant kingdom north of Damascus, until David defeated him decisively. The name incorporates the storm god Hadad, testifying to Aramaic religious culture. Multiple accounts of David's victories over him appear in Samuel, Kings, and Chronicles, with textual variants between 'Hadadezer' and 'Hadarezer.' He commanded substantial forces including chariots and horsemen, extending his territory toward the Euphrates. David's triumph over such a powerful foe demonstrated his emerging dominance in the region. Aramaic inscriptions confirm the name's authenticity and typical formation.