25 Abraham again took a wife, and her name was Keturah. 2 And she bore him Zimran, Jokshan, Medan, Midian, Ishbak, and Shuah. 3 Jokshan begot Sheba and Dedan. And the sons of Dedan were Asshurim, Letushim, and Leummim. 4 And the sons of Midian were Ephah, Epher, Hanoch, Abidah, and Eldaah. All these werethe children of Keturah.
5 And Abraham gave all that he had to Isaac. 6 But Abraham gave gifts to the sons of the concubines which Abraham had; and while he was still living he sent them eastward, away from Isaac his son, to the country of the east.
“And the Lord visited Sarah as He had said, and the Lord did for Sarah as He had spoken. 2 For Sarah conceived and bore Abraham a son in his old age, at the set time of which God had spoken to him. 3 And Abraham called the name of his son who was born to him—whom Sarah bore to him—Isaac. 4 Then Abraham circumcised his son Isaac when he was eight days old, as God had commanded him. 5 Now Abraham was one hundred years old when his son Isaac was born to him. 6 And Sarah said, “God has made me laugh, and all who hear will laugh with me.” 7 She also said, “Who would have said to Abraham that Sarah would nurse children? For I have borne him a son in his old age.”
Now it came to pass after these things that God tested Abraham, and said to him, “Abraham!”
And he said, “Here I am.”
2 Then He said, “Take now your son, your only son Isaac, whom you love, and go to the land of Moriah, and offer him there as a burnt offering on one of the mountains of which I shall tell you.”