Then Abraham laughed so hard he fell to the ground, saying to himself, “How in the world can a hundred-year-old man become a father? How can my wife Sarah get pregnant at ninety?”
In spite of being nearly one hundred years old when the promise of having a son was made, his faith was so strong that it could not be undermined by the fact that he and Sarah were incapable of conceiving a child.
When Abram was ninety-nine years old, Yahweh appeared to him again and said, “I am the God who is more than enough. Live your life in my presence and be blameless.