By your sword you shall live, And you shall serve your brother; And it shall come to pass, when you become restless, That you shall break his yoke from your neck."
Genesis 27:40
Surrounding context
27:39 Then Isaac his father answered and said to him: "Behold, your dwelling shall be of the fatness of the earth, And of the dew of heaven from above.
27:40 By your sword you shall live, And you shall serve your brother; And it shall come to pass, when you become restless, That you shall break his yoke from your neck."
27:41 So Esau hated Jacob because of the blessing with which his father blessed him, and Esau said in his heart, "The days of mourning for my father are at hand; then I will kill my brother Jacob."