According to the Hebrew Bible, Isaac is the son of Abraham and Sarah, and the father of Jacob and Esau. His story is told in the Book of Genesis. Abraham was 100 years old when Isaac was born. (Genesis 21:1–5) Isaac was the longest-lived of the patriarchs, and the only biblical patriarch whose name was not changed. Isaac was the only patriarch who did not leave Canaan, although he once tried to leave and God told him not to do so. Compared to other patriarchs in the Bible, his story is less colorful, relating few incidents of his life.The New Testament contains few references to Isaac. The Christian church views Abraham's willingness to follow God's command to sacrifice Isaac as an example of faith and obedience. Muslims honour Isaac as a prophet of Islam. A few of the children of Isaac appear in the Qur'an. The Qur'an views Isaac as a righteous man, servant of God and the father of Israelites. The Qur'an states that Isaac and his progeny are blessed as long as they uphold their covenant with God. Some early Muslims believed that Isaac was the son who was supposed to be sacrificed by Abraham. This view however ceased to find support among Muslim scholars in later centuries.