Romans 9:9
For this is the statement of the promise: At this time I will come, and Sarah will have a son.
Genesis 18:10
The Lord said, “I will certainly come back to you in about a year’s time, and your wife Sarah will have a son!”
Genesis 18:14
Is anything impossible for the Lord?
Genesis 17:21
But I will confirm My covenant with Isaac, whom Sarah will bear to you at this time next year.”
Genesis 21:2
Sarah became pregnant and bore a son to Abraham in his old age, at the appointed time God had told him.
Hebrews 11:11-12
By faith even Sarah herself, when she was unable to have children, received power to conceive offspring, even though she was past the age, since she
Hebrews 11:17
By faith Abraham, when he was tested, offered up Isaac.