Genesis 21:2
And she conceived, and Sarah bore to 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 female slave and one by the free woman.
Hebrews 11:11
By faith also, {with Sarah}, he received {the ability to procreate} even {past the normal age}, because he regarded the one who had promised [to be] faithful.
Genesis 17:21
But my covenant I will establish with Isaac, whom Sarah shall bear to you at this appointed time next year."
Genesis 17:19
And God said, "No, but Sarah your wife shall bear a son for you, and you shall call his name Isaac. And I will establish my covenant with him as an everlasting covenant to his offspring after him.
Genesis 18:10
And he said, "I will certainly return to you {in the spring}, and look, Sarah your wife [will have] a son." Now Sarah [was] listening at the doorway of the tent, and which [was] behind him.
Genesis 18:14
Is anything too difficult for Yahweh? At the appointed time I will return to you {in the spring} and Sarah [shall have] a son."
Acts 7:8
And he gave him the covenant of circumcision, and so he became the father of Isaac and circumcised him on the eighth day, and Isaac [did so with] Jacob, and Jacob [did so with] the twelve patriarchs.
2 Kings 4:16-17
And he said, "At this time {next spring}, you [will be] embracing a son." She said, "No, my lord, man of God! You must not tell a lie to your servant!"
Luke 1:24-25
Now after these days, his wife Elizabeth conceived, and she kept herself in seclusion [for] five months, saying,
Luke 1:36
And behold, your relative Elizabeth--she also has conceived a son in her old age, and this is the sixth month for her who was called barren.
Romans 9:9
For the statement of the promise [is] this: "At this time I will return and {Sarah will have} a son."