A Life of Faith Lived in the Flesh
In the grand narrative of the patriarchs, Isaac often occupies a secondary position. While the biblical text devotes vast sections to the lives of Abraham, Jacob, and Joseph, Isaac’s personal narrative is relatively brief. He is frequently described as the ordinary son of an extraordinary father and the ordinary father of an extraordinary son. However, despite his limited time in the spotlight, the life of Isaac offers a profound study of the human condition—specifically, the reality of a life of faith lived in the flesh.
Isaac’s journey began with the miraculous. He was the child of promise, born to Sarah in her old age just as God had foretold. He was the youth who submissively allowed his father to bind him on Mount Moriah, witnessing firsthand the provision of the Lord. Yet, as Isaac aged, the clarity of his early faith seemingly dimmed alongside his physical eyesight. His story in Genesis 27 serves as a cautionary tale regarding how easily the people of God can drift from divine priorities toward personal preferences and fleshly desires.
The Conflict of Divine Sovereignty and Human Will
To understand the tragedy of Isaac’s later years, one must look back to the birth of his twin sons, Esau and Jacob. Before the boys were born, God provided a specific prophecy to Rebekah regarding their futures. He declared that two nations were in her womb and that the natural order of the ancient world would be overturned: the older son would serve the younger.
Genesis 25:23 (NASB) The LORD said to her, ‘Two nations are in your womb; And two peoples will be separated from your body; And one people shall be stronger than the other; And the older shall serve the younger.’
This divine decree stood in direct opposition to the cultural norms of the day, which prioritized the firstborn through two distinct mechanisms: the birthright and the blessing. The birthright was a legal matter, typically granting the eldest son a double portion of the inheritance. The blessing, however, was a spiritual and prophetic invocation of divine favor, prosperity, and leadership. By the time Isaac reached old age, the family dynamic had become a battleground of competing wills. Esau, a man of the flesh, had already shown his disregard for his heritage by selling his birthright to Jacob for a mere bowl of stew.
Genesis 25:34 (NASB) Then Jacob gave Esau bread and lentil stew; and he ate and drank, and rose and went on his way. Thus Esau despised his birthright.
Despite Esau’s character and God’s previous word, Isaac attempted to bypass the divine plan to favor his eldest son. Driven by his physical appetite for wild game and his personal affection for Esau, Isaac sought to bestow the blessing in secret, attempting to solidify a future that God had already redirected.
The Anatomy of Deception
When Isaac called Esau to prepare a meal so that he might bless him before he died, he set in motion a chain of catastrophic deceptions. Rebekah, hearing the plan, chose to take God’s promise into her own hands through manipulation rather than trust. She orchestrated a scheme where Jacob would impersonate his brother, using goat skins to mimic Esau’s hairiness and wearing Esau’s clothes to mimic his scent.
Genesis 27:1-4 (NASB) Now it came about, when Isaac was old and his eyes were too dim to see, that he called his older son Esau and said to him, ‘My son.’ And he said to him, ‘Here I am.’ Isaac said, ’Behold now, I am old [and] I do not know the day of my death. ‘Now then, please take your gear, your quiver and your bow, and go out to the field and hunt game for me; and prepare a savory dish for me such as I love, and bring it to me that I may eat, so that my soul may bless you before I die.’
Jacob’s participation in this ruse reveals a character marked by opportunism. When Isaac questioned the identity of the son standing before him, Jacob did not hesitate to lie, even invoking the name of God to explain his suspiciously quick success in finding game. This moment represents the pinnacle of a family living in the flesh: a father attempting to subvert God’s will, a mother practicing deception, and a son building his future on a foundation of falsehoods.
Genesis 27:18-24 (NASB) Then he came to his father and said, ‘My father.’ And he said, ‘Here I am. Who are you, my son?’ Jacob said to his father, ‘I am Esau your firstborn; I have done as you told me. Get up, please, sit and eat of my game, that you may bless me.’ Isaac said to his son, ‘How is it that you have [it] so quickly, my son?’ And he said, ‘Because the LORD your God caused [it] to happen to me.’ Then Isaac said to Jacob, ‘Please come close, that I may feel you, my son, whether you are really my son Esau or not.’ So Jacob came close to Isaac his father, and he felt him and said, ‘The voice is the voice of Jacob, but the hands are the hands of Esau.’ He did not recognize him, because his hands were hairy like his brother Esau’s hands; so he blessed him. And he said, ‘Are you really my son Esau?’ And he said, ‘I am.’
Isaac eventually succumbed to the deception, smelling the fields on Jacob’s garments and tasting the food Rebekah had prepared. He delivered a comprehensive blessing of prosperity and dominion, inadvertently fulfilling God’s prophecy while believing he was defying it. The irony of the narrative is that while God’s sovereign will was accomplished, the human agents involved suffered the devastating consequences of their methods.
The Consequences of the Flesh
As soon as Jacob departed with the blessing, Esau returned from the field. The realization of the betrayal led to a scene of profound grief and bitter anger. Isaac, realizing he had been deceived, trembled violently, acknowledging that the spoken blessing was irrevocable. Esau, finding no way to reclaim what was lost, received only an “anti-blessing”—a prophecy of a life of struggle and eventual rebellion.
Genesis 27:39-40 (NASB) Then Isaac his father answered and said to him, ’Behold, away from the fertility of the earth shall be your dwelling, And away from the dew of heaven from above. ‘By your sword you shall live, And your brother you shall serve; But it shall come about when you become restless, That you will break his yoke from your neck.’
This prophecy was later realized in the historical record of the Edomites, Esau’s descendants, who lived in perpetual conflict with the descendants of Jacob.
2 Kings 8:20-22 (NASB) In his days Edom revolted from under the hand of Judah, and made a king over themselves. Then Joram crossed over to Zair, and all his chariots with him. And he arose by night and struck the Edomites who had surrounded him and the captains of the chariots; but [his] army fled to their tents. So Edom revolted against Judah to this day. Then Libnah revolted at the same time.
The immediate fallout for the family was equally grim. Jacob was forced to flee for his life to Haran, the home of his uncle Laban. Rebekah, who thought she was sending her favorite son away for only a few days, never saw Jacob again. She lived out her remaining years in the shadow of her own deception, eventually fading from the biblical narrative without the honor typically accorded to the matriarchs. Isaac lived for another eighty years, dwelling in the wreckage of a fractured home and the memory of his own failed attempt to steer the providence of God.
Breaking the Cycle of Dysfunction
The story of Isaac’s family is a “hot mess” of sibling rivalry, parental favoritism, and spiritual passivity. It serves as a stark reminder that while believers are shaped by their families of origin, they need not be defined by them. Isaac inherited some of the negative traits of his father, Abraham, and passed his own dysfunctions down to his sons. However, the gospel offers a different path. It acknowledges that while humans are prone to living by the flesh, the grace of God provides a means of transformation.
2 Corinthians 5:17 (NASB) Therefore if anyone is in Christ, [he is] a new creature; the old things passed away; behold, new things have come.
Isaac’s life teaches that it is not merely how one starts the race of faith, but how one finishes. He began with great promise and submissiveness but ended his narrative characterized by physical appetite and spiritual blindness. Yet, even in this brokenness, the sovereignty of God remained unshaken. God used a dysfunctional family to preserve the line of promise, demonstrating that His plans are not thwarted by human failure. For the contemporary reader, this history is an invitation to examine the “goat hair” and deceptions in their own lives, seeking the honesty and repentance that Isaac’s family so tragically lacked. It is a call to trade a life lived in the flesh for a life fully surrendered to the Spirit of God.