Galatians 4:23
But he that was of the maid servant was born according to flesh, and he that was of the free woman through the promise.
Hebrews 11:11
By faith also Sarah herself received strength for the conception of seed, and that beyond a seasonable age; since she counted him faithful who promised.
Genesis 18:10-14
And he said, I will certainly return to thee at this time of the year, and behold, Sarah thy wife shall have a son. And Sarah was listening at the tent-door, which was behind him.
Genesis 21:1-2
And Jehovah visited Sarah as he had said, and Jehovah did to Sarah as he had spoken.
Romans 9:7-8
nor because they are seed of Abraham are all children: but, In Isaac shall a seed be called to thee.
Genesis 17:15-19
And God said to Abraham, As to Sarai thy wife, thou shalt not call her name Sarai, but Sarah shall be her name.
Romans 4:18-21
who against hope believed in hope to his becoming father of many nations, according to that which was spoken, So shall thy seed be:
Romans 10:8
But what says it? The word is near thee, in thy mouth and in thy heart: that is, the word of faith, which we preach:
Galatians 4:28-29
But ye, brethren, after the pattern of Isaac, are children of promise.