1 Now Abraham took another wife, whose name was Keturah. 2 She bore to him Zimran and Jokshan and Medan and Midian and Ishbak and Shuah. 3 Jokshan became the father of Sheba and Dedan. And the sons of Dedan were Asshurim and Letushim and Leummim. 4 The sons of Midian were Ephah and Epher and Hanoch and Abida and Eldaah. All these were the sons of Keturah. 5 Now Abraham gave all that he had to Isaac; 6 but to the sons of his concubines, Abraham gave gifts while he was still living, and sent them away from his son Isaac eastward, to the land of the east.
7 These are all the years of Abraham’s life that he lived, one hundred and seventy-five years. 8 Abraham breathed his last and died in a ripe old age, an old man and satisfied with life; and he was gathered to his people. 9 Then his sons Isaac and Ishmael buried him in the cave of Machpelah, in the field of Ephron the son of Zohar the Hittite, facing Mamre, 10 the field which Abraham purchased from the sons of Heth; there Abraham was buried with Sarah his wife. 11 It came about after the death of Abraham, that God blessed his son Isaac; and Isaac lived by Beer-lahai-roi.
God indeed blessed Abraham, and now that Abraham had proven himself to be trustworthy, he had even more children by his second wife. He knew better than to let them contend with Isaac though, and sent them all to the east, so that there would not be contention (hopefully) between their descendants.