A change in leadership often tests the strength of long-standing alliances. Following the death of David and the rise of Solomon to the throne, the historic bond between the kingdom of Tyre and the kingdom of Israel required a renewed foundation. Upon hearing that Solomon had been anointed king in place of his father, Hiram took action by sending a delegation.
The primary approach among commentators is that this gesture followed standard royal customs of the time. The delegation's purpose was to offer peaceful words, comfort the new king over the loss of his father, and congratulate him on his coronation [מצודת דוד, אברבנאל, ביאור שטיינזלץ]. Beyond basic politeness, the envoys sought to guarantee the continuation of their relationship. They offered Solomon cooperation and raw materials from Tyre, maintaining the same support previously provided to David [רד״ק, אברבנאל].
The driving force behind this initiative was Hiram's lifelong love for David. However, this affection may have been rooted in practical interests. Hiram served as the primary supplier of building materials and construction experts for David's kingdom, and he had a clear desire to preserve a highly profitable economic partnership [ביאור שטיינזלץ].
A subtle detail highlights the evolution of this political relationship. When reaching out to Solomon, Hiram sent his ordinary servants. This stands in contrast to his initial contact with David years earlier, which required the dispatch of official messengers. During the early days of David's rule, Hiram needed to send high-ranking ambassadors and ministers to build a completely new alliance from the ground up. By the time Solomon took power, the bond between the nations was already deeply established and secure. Hiram could comfortably send regular servants merely to check on the new king, acting with complete confidence in the strong alliance that Solomon had inherited [מלבי״ם].