Cross-references Explore similar Bible verses on Genesis 21:5 in English Standard Version "Abraham was a hundred years old when his son Isaac was born to him." Ge 17:1 When Abram was ninety-nine years old the Lord appeared to Abram and said to him, “I am God Almighty; walk before me, and be blameless, Ge 17:17 Then Abraham fell on his face and laughed and said to himself, “Shall a child be born to a man who is a hundred years old? Shall Sarah, who is ninety years old, bear a child?” Ro 4:19 He did not weaken in faith when he considered his own body, which was as good as dead (since he was about a hundred years old), or when he considered the barrenness of Sarah’s womb.