Genesis 27 is the account of how Jacob deceived his father Isaac to steal the blessing intended for his older brother Esau.
Isaac, now old and blind, felt death approaching and asked his favorite son Esau to hunt game and prepare a meal for him, after which he planned to give Esau his special blessing.
Rebekah overheard this conversation and devised a plan to ensure her favorite son Jacob received the blessing instead. She prepared a meal and helped Jacob disguise himself as Esau by covering his smooth skin with goatskins and dressing him in Esau's clothes.
When Jacob went to Isaac pretending to be Esau, Isaac was suspicious because Jacob's voice didn't match Esau's. He felt Jacob's goatskin-covered hands and was convinced enough to proceed with the blessing, which included promises of abundance, dominion over nations, and curses for those who cursed him.
Shortly after Jacob left, Esau returned with the prepared meal. Isaac and Esau both realized the deception, and Esau wept bitterly. Isaac couldn't revoke the blessing already given to Jacob but offered Esau a lesser blessing that included living by the sword and eventually breaking free from Jacob's dominion.
Esau became enraged and planned to kill Jacob after their father died. When Rebekah learned of this threat, she told Jacob to go her brother Laban's house in Haran, under the pretext of finding a wife from her family rather than from the local Canaanites.
