Genesis 27:19
And Jacob said unto his father, I am Esau thy firstborn; I have done according as thou badest me: arise, I pray thee, sit and eat of my venison, that thy soul may bless me.
Cross-references
Genesis 27:4 is Isaac's original request: prepare game so I can bless you. Jacob now fulfills that exact request while pretending to be Esau.
In Genesis 27:21, Isaac responds by wanting to feel Jacob, testing his claim to be Esau — a direct reaction to Jacob's lie.
Genesis 27:24 records Jacob's final affirmation 'I am' when asked directly, completing the deception begun in the main verse.
Genesis 27:25 shows Isaac eating the meal after being convinced, the outcome of Jacob's deceptive claim.
Genesis 27:35 is the aftermath: Esau cries out 'your brother came deceitfully and took your blessing' — the direct consequence of this deception.
In Genesis 29:23-25, Jacob is deceived by Laban about Leah's identity, mirroring his own deception of Isaac in the main verse.
Genesis 25:28 reveals Isaac loved Esau because of his game — this is why Jacob needed to bring game to successfully impersonate Esau and secure the blessing.