And he did not weaken in faith when he considered his own body, which was as good as dead since he was about a hundred years old, or when he considered the barrenness of Sarah's womb.

For this is what the promise said: "About this time I will return and Sarah shall have a son."

By faith Sarah herself received power to conceive, even when she was past the age, because she considered him faithful who had promised.

just as Sarah obeyed Abraham, calling him lord. And you are her children if you do what is right and are not frightened by any fear.