CHAPTER 25 Jan. 14 
The Genealogy of Abraham and Keturah 
Abraham took another wife, and her name was Keturah. 2She bore him Zimran, Jokshan, Medan, Midian, Ishbak, and Shuah. 3Jokshan became the father of Sheba, and Dedan. The sons of Dedan were Asshurim, Letushim, and Leummim. 4The sons of Midian: Ephah, Epher, Hanoch, Abida, and Eldaah. All these were the children of Keturah. 5Abraham gave all that he had to Isaac, 6but to the sons of Abraham’s concubines, Abraham gave gifts. He sent them away from Isaac his son, while he yet lived, eastward, to the east country. 7These are the days of the years of Abraham’s life which he lived: one hundred and seventy-five years. 8Abraham gave up the spirit, and died in a good old age, an old man, and full of years, and was gathered to his people. 9Isaac and Ishmael, his sons, buried him in the cave of Machpelah, in the field of Ephron, the son of Zohar the Hittite, which is before Mamre, 10the field which Abraham purchased of the children of Heth. Abraham was buried there with Sarah, his wife. 11It happened after the death of Abraham that God blessed Isaac, his son. Isaac lived by Beer Lahai Roi.
The Genealogy of Ishmael 
12Now this is the history of the generations of Ishmael, Abraham’s son, whom Hagar the Egyptian, Sarah’s handmaid, bore to Abraham. 13These are the names of the sons of Ishmael, by their names, according to the order of their birth: the firstborn of Ishmael, Nebaioth, then Kedar, Adbeel, Mibsam, 14Mishma, Dumah, Massa, 15Hadad, Tema, Jetur, Naphish, and Kedemah. 16These are the sons of Ishmael, and these are their names, by their villages, and by their encampments: twelve princes, according to their nations. 17These are the years of the life of Ishmael: one hundred and thirty-seven years. He gave up the spirit and died, and was gathered to his people. 18They lived from Havilah to Shur that is before Egypt, as you go toward Assyria. He lived opposite all his relatives.
The Birth of Esau and Jacob 
19This is the history of the generations of Isaac, Abraham’s son. Abraham became the father of Isaac. 20Isaac was forty years old when he took Rebekah, the daughter of Bethuel the Syrian of Paddan Aram, the sister of Laban the Syrian, to be his wife. 21Isaac entreated Yahweh for his wife, because she was barren. Yahweh was entreated by him, and Rebekah his wife conceived. 22The children struggled together within her. She said, If it be so, why do I live? She went to inquire of Yahweh. 23Yahweh said to her, Two nations are in your womb. Two peoples will be separated from your body. The one people will be stronger than the other people. The elder will serve the younger. 24When her days to be delivered were fulfilled, behold, there were twins in her womb. 25The first came out red all over, like a hairy garment. They named him Esau. 26After that, his brother came out, and his hand had hold on Esau’s heel. He was named Jacob. Isaac was sixty years old when she bore them. 
Jacob Supplants Esau as Firstborn 
27The boys grew. Esau was a skilful hunter, a man of the field. Jacob was a perfect man, living in tents. 28Now Isaac loved Esau, because he ate his venison. Rebekah loved Jacob. 29Jacob boiled stew. Esau came in from the field, and he was famished. 30Esau said to Jacob, Please feed me with that same red stew, for I am famished. Therefore his name was called Edom. 31Jacob said, First, sell me your birthright. 32Esau said, Behold, I am about to die. What good is the birthright to me? 33Jacob said, Swear to me first. He swore to him. He sold his birthright to Jacob. 34Jacob gave Esau bread and stew of lentils. He ate and drank, rose up, and went his way. So Esau despised his birthright.

Commentary

25:8 As the reward will only be given at the judgment on Christ’s return, it follows that the righteous and wicked go to the same place when they die, i.e. the grave. There is no differentiation made between them in their deaths. Righteous Abraham was “gathered to his people” (or ancestors) on death; they were unbelieving idolaters (Josh. 24:2). 
25:23 God loves to work through the weak, the despised, the last, or in this case, the younger.
25:26 Isaac delayed parenthood until he could have children by a believing woman.
25:27 By grace, righteousness has to be imputed to us.  This happened to Jacob; he didn't make it to the spiritually perfect / mature status with which he is credited right at the beginning (25:27). Job is an identical case; he is labelled “perfect” at the beginning, but at the end of his spiritual growth, he confessed his imperfection.  Jacob  is described as “perfect” at a time when he had not even accepted Yahweh as his God (28:21).  Quite simply, God counts His beloved children as being far more righteous than they are. The mechanism by which He now does this is through our baptism into Christ, whereby we are counted as if we are Him. Being counted perfect is therefore not simply the bias and ridiculous favoritism of a doting, unrealistic, Divine parent.
25:30 Jacob’s behaviour here was wrong. It’s alluded to in a negative way by Paul when he says that we should eagerly feed even our enemy (Rom. 12:20). Jacob should have believed God’s promise, that he as the younger would be the more blessed (25:23), rather than trying to obtain the birthright in his own strength.