What does Genesis 27:30 mean?
Jacob, with the help and insistence of his mother Rebekah, has pulled off an unlikely deception. It's true that Jacob's father was old and blind, but to trick him into giving what was apparently an irrevocable family blessing was quite an accomplishment (Genesis 27:6–17).One thing that almost kept Isaac from believing that Jacob was Esau was that he was there too quickly. It seemed unlikely that Esau could have killed and prepared his game so soon after being sent out by his father. Jacob's answer was that God's blessing made it possible. In truth, Jacob arrived early because he had to deliver his meal to Isaac and receive the blessing before Esau returned, just as his father had requested (Genesis 27:1–5).
Now we see just how close the whole plan was to blowing up. Jacob had scarcely left Isaac's presence, blessing in hand, when Esau entered with his own meal for Isaac. Now the scam will be revealed, too late, but with consequences all the same.
Genesis 27:30–46 describes the aftermath of Jacob's deception of Isaac in order to receive the family blessing. Once Esau arrives and Isaac realizes he has given the blessing to the wrong son, his body begins to tremble in panic. Esau, deeply distraught, cries out in loud and bitter agony. Isaac gives to Esau a leftover blessing that reads like a curse. Esau pledges to kill Jacob once their father has died. Learning of this, Rebekah urges Jacob to run away to live with her brother in Mesopotamia.
Isaac's plan to pass the family blessing on to his favorite son, Esau, is thwarted by the deception of Isaac's wife Rebekah, and his other son Jacob. Old and blind, Isaac fails to recognize that the man claiming to be Esau is actually Jacob in a clever disguise. His prayer of blessing for wealth and rule over his brothers will remain valid though it is given under false pretense. Esau will be left with a blessing that sounds like a curse and a plan to murder his brother. Jacob will be forced to run for his life.