Facing the sudden realization that the blessings have already been given to Jacob, Isaac must explain to Esau why nothing remains for him. Beneath the surface of his apologetic words lies a profound internal shift. Isaac now recognizes Esau's true nature and understands that he is fundamentally unworthy of the blessing; his expressions of regret are merely outward diplomacy [אור החיים]. Isaac sees clearly that the mantle of spiritual leadership rightfully belongs to Jacob, who requires a solid material foundation to fulfill his destiny [רש ר הירש]. Ultimately, Isaac subtly conveys that the primary blessings of spiritual purpose and eternal life simply do not align with Esau's character and chosen path [צרור המור].
Isaac explains that granting Esau any material wealth would be entirely futile. By establishing Jacob as the master and direct ruler over his brother [נתינה לגר], a strict legal reality is created: whatever a servant acquires automatically belongs to his master. Therefore, even if Isaac were to bestow vast riches or fertile lands upon Esau, all of it would ultimately become Jacob's property [רש״י, רשב״ם, דברי דוד, מלבי״ם, ביאור שטיינזלץ].
This sweeping authority was granted not through a physical handover, but through the binding power of speech and blessing [אבן עזרא, אבי עזר, מחוקקי יהודה]. Isaac further decrees a reality of actual subjugation, stating that all of Esau's relatives are given over as servants [רמב״ן, הטור הארוך]. Because Esau has no brothers other than Jacob, this decree refers either to Esau's future descendants [רמב״ן, הטור הארוך] or to his extended family, such as the offspring of Ishmael and Keturah [ספורנו, פענח רזא, חזקוני].
Regarding agricultural wealth, Isaac clarifies that he has already provided Jacob with profound material support [רד״ק, ביאור יש״ר]. This physical abundance is not the core of Jacob's blessing, but rather an essential aid. Freed from the burdens of poverty and the struggle for survival, Jacob can more easily attain spiritual perfection and fulfill God's commandments [הכתב והקבלה]. In this way, Jacob received a dual blessing that encompasses both physical and spiritual needs [רבנו בחיי]. Isaac explicitly mentions this agricultural abundance to preempt any argument from Esau. Esau might have asked for fertile land simply to pay tribute and taxes to his new master, but Isaac shuts this down: Jacob already has his own grain and wine and has no need for Esau's agricultural labor [יריעות שלמה].
Finally, Isaac asks in helpless resignation what he could possibly do for Esau now. He wonders where he could even find anything left to bestow, as the reserves of blessing are entirely depleted [רש״י, הכתב והקבלה]. This final plea extends beyond Esau himself, serving as a subtle reference to his five future sons. Isaac essentially asks what he can possibly do for Esau and his lineage, considering they have all already been irrevocably given to Jacob as servants [רבנו בחיי].