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.
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 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.