Isaac(/ˈaɪzək/; Hebrew: יִצְחָק, ModernYitshak, TiberianYiṣḥāq, ISO 259-3 Yiçḥaq, "[he] will laugh"; Ancient Greek: ἸσαάκIsaak Arabic:إسحاق or إسحٰقʼIsḥāq) as described in the Hebrew Bible and the Qur'an, was the second son of Abraham, the only son Abraham had with his wife Sarah, and the father of Jacob and Esau. According to the Book of Genesis, Abraham was 100years old when Isaac was born, and Sarah was past 90.