Genesis 21:2
So Sarah became pregnant and bore Abraham a son in his old age at the appointed time that God had told him.
Galatians 4:22
For it is written that Abraham had two sons, one by the slave woman and the other by the free woman.
Hebrews 11:11
By faith, even though Sarah herself was barren and he was too old, he received the ability to procreate, because he regarded the one who had given the promise to be trustworthy.
Genesis 17:21
But I will establish my covenant with Isaac, whom Sarah will bear to you at this set time next year."
Genesis 17:19
God said, "No, Sarah your wife is going to bear you a son, and you will name him Isaac. I will confirm my covenant with him as a perpetual covenant for his descendants after him.
Genesis 18:10
One of them said, "I will surely return to you when the season comes round again, and your wife Sarah will have a son!" (Now Sarah was listening at the entrance to the tent, not far behind him.
Genesis 18:14
Is anything impossible for the Lord? I will return to you when the season comes round again and Sarah will have a son."
Acts 7:8
Then God gave Abraham the covenant of circumcision, and so he became the father of Isaac and circumcised him when he was eight days old, and Isaac became the father of Jacob, and Jacob of the twelve patriarchs.
2 Kings 4:16-17
He said, "About this time next year you will be holding a son." She said, "No, my master! O prophet, do not lie to your servant!"
Luke 1:24-25
After some time his wife Elizabeth became pregnant, and for five months she kept herself in seclusion. She said,
Luke 1:36
"And look, your relative Elizabeth has also become pregnant with a son in her old age -- although she was called barren, she is now in her sixth month!
Romans 9:9
For this is what the promise declared: "About a year from now I will return and Sarah will have a son."