Genesis 21:5

Abraham was a hundred years old when his son Isaac was born.

Genesis 17:17

Then Abraham fell on his face and laughed, and said in his heart, “Shall a child be born to a man who is a hundred years old? And shall Sarah, who is ninety years old, bear a child?”

Genesis 17:1

When Abram was ninety-nine years old, the Lord appeared to him and said,

“I am God Almighty;
Walk [habitually] before Me [with integrity, knowing that you are always in My presence], and be blameless and complete [in obedience to Me].

Romans 4:19

Without becoming weak in faith he considered his own body, now as good as dead [for producing children] since he was about a hundred years old, and [he considered] the deadness of Sarah’s womb.

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