Galatians 4:23
But in fact, the man from the servant girl was born according to flesh, but the man from the freewoman through promise.
Hebrews 11:11
By faith even Sarah herself received power for conception of seed, and she gave birth beyond the time of age, because she considered him faithful who promised.
Genesis 18:10-14
And he said, I will certainly return to thee when the season comes round, and, lo, Sarah thy wife shall have a son. And Sarah heard in the tent door, which was behind him.
Genesis 21:1-2
And LORD visited Sarah as he had said, and LORD did to Sarah as he had spoken.
Romans 9:7-8
nor, because they are Abraham's seed, are they all children, rather, In Isaac a seed will be called for thee.
Genesis 17:15-19
And God said to Abraham, As for Sarai thy wife, thou shall not call her name Sarai, but her name shall be Sarah.
Romans 4:18-21
Who, against hope, believed in hope, in order for him to become father of many nations according to that which was spoken, So thy seed will be.
Romans 10:8
But what does it say? The word is near thee, in thy mouth and in thy heart, that is, the word of faith that we preach:
Galatians 4:28-29
Now we, brothers, who correspond to Isaac, are children of promise.