And he gave him the covenant of circumcision: and so he begat Isaac, and circumcised him the eighth day; and Isaac Jacob; and Jacob the twelve patriarchs.
And the sons of Keturah, Abraham's concubine: she brought forth Zimran, and Jokshan, and Medan, and Midian, and Ishbak and Shuah. And the sons of Jokshan; Sheba, and Dedan.
And Isaak shall be the son of forty years in his taking Rebekah, daughter of Bethuel the Syrian of Padan Aram, sister of Laban the Syrian, to him for a wife.