Genesis 21:5 Gen. 21:5
And Abraham was an hundred years old, when his son Isaac was born unto him.
Romans 4:19 Rom. 4:19
And being not weak in faith, he considered not his own body now dead, when he was about an hundred years old, neither yet the deadness of Sarah's womb:
(Relation)
Genesis 18:10-11 Gen. 18:10-11
10 And he said, I will certainly return unto thee according to the time of life; and, lo, Sarah thy wife shall have a son. And Sarah heard it in the tent door, which was behind him. 11 Now Abraham and Sarah were old and well stricken in age; and it ceased to be with Sarah after the manner of women.
Romans 4:19-21 Rom. 4:19-21
19 And being not weak in faith, he considered not his own body now dead, when he was about an hundred years old, neither yet the deadness of Sarah's womb: 20 He staggered not at the promise of God through unbelief; but was strong in faith, giving glory to God; 21 And being fully persuaded that, what he had promised, he was able also to perform.
(Relation)