Following a profound declaration of closeness where God claims the king as His own son, God presents an offer of vast global authority. In a natural reflection of a father gifting an inheritance to his child [אבן עזרא], God invites the king to simply ask for what he desires, with the guarantee that his request will be answered [מצודת דוד, ביאור שטיינזלץ]. This invitation carries a specific moral direction. It is a call for the king to request to bring the nations under his rule rather than seeking their destruction, thereby continuing the legacy of Abraham [אלשיך]. Alternatively, this invitation serves as a practical, ongoing instruction for leadership, requiring the king to pray to God every single time he goes out to battle his enemies [רש״י].
The promise given is that the king's rule will expand to encompass many nations [ביאור שטיינזלץ]. Historically, this vision became a reality during the reign of King David. During his time, God eliminated his enemies, established his great reputation across the world, turned various nations into his subjects, and cast a widespread fear of him over all nations [רד״ק, מאירי].
The nature of this global rule is defined by two distinct concepts: an inheritance and a possession. An inheritance represents a legal or ancestral right, yet a person can hold a right to an inheritance without actually controlling the property. To complete the promise, the concept of physical possession is included, guaranteeing the practical grasp and active control over the territories [מלבי״ם].
The borders of this promised kingdom are destined to reach the very edges of the earth [רד״ק, מאירי, ביאור שטיינזלץ]. This expansion extends to boundaries so distant that the land itself seems to end and fade into nothingness [מצודת ציון], reaching into the most remote, isolated places that are entirely disconnected from human settlement [אבן עזרא].