Genesis 21:5 Cross References - Webster

⁵ And Abraham was a hundred years old, when his son Isaac was born to him.

¹ And when Abram was ninety and nine years old, the LORD appeared to Abram, and said to him, I am the Almighty God; walk before me, and be thou perfect.

¹⁷ Then Abraham fell upon his face, and laughed, and said in his heart, Shall a child be born to him that is a hundred years old? and shall Sarah, who is ninety years old, bear?

¹⁹ And being not weak in faith, he considered not his own body now dead, when he was about a hundred years old, neither yet the deadness of Sarah's womb.