And it came to pass, that when Isaac was old, and his eyes were dim, so that he could not see, he called Esau his eldest son, and said to him, My son: and he said to him, Behold, here am I.

He was oppressed, and he was afflicted, yet he opened not his mouth; he is brought as a lamb to the slaughter, and as a sheep before her shearers is dumb, so he opened not his mouth.