Hebrews 11:11

By faith also Sara herself being sterile received strength to conceive seed and was delivered of a child when she was past age, because she believed him to be faithful who had promised.

Genesis 18:11-14

Now Abraham and Sarah were old and well stricken in age, and it ceased to be with Sarah after the manner of women.

Hebrews 10:23

let us hold fast the profession of our hope without wavering (for he is faithful that promised).

Genesis 17:17-19

Then Abraham fell upon his face and laughed and said in his heart, Shall a child be born unto him who is one hundred years old? and shall Sarah, who is ninety years old, bear?

Genesis 21:1-2

And the LORD visited Sarah as he had said, and the LORD did with Sarah as he had spoken.

Luke 1:36

And, behold, thy relative Elisabeth, she has also conceived a son in her old age; and this is the sixth month with her, who was called barren.

Romans 4:20-21

he doubted not the promise of God, with unbelief, but was strengthened in faith, giving glory to God,

1 Peter 3:5-6

For after this manner in the old time the holy women also, who waited upon God, adorned themselves, being in subjection unto their own husbands,

Treasury of Scripture Knowledge

Summary

Through faith also Sara herself received strength to conceive seed, and was delivered of a child when she was past age, because she judged him faithful who had promised.

General references

Bible References

Sara

Genesis 17:17
Then Abraham fell upon his face and laughed and said in his heart, Shall a child be born unto him who is one hundred years old? and shall Sarah, who is ninety years old, bear?
Genesis 18:11
Now Abraham and Sarah were old and well stricken in age, and it ceased to be with Sarah after the manner of women.
Genesis 21:1
And the LORD visited Sarah as he had said, and the LORD did with Sarah as he had spoken.
Luke 1:36
And, behold, thy relative Elisabeth, she has also conceived a son in her old age; and this is the sixth month with her, who was called barren.
1 Peter 3:5
For after this manner in the old time the holy women also, who waited upon God, adorned themselves, being in subjection unto their own husbands,

Because

Hebrews 10:23
let us hold fast the profession of our hope without wavering (for he is faithful that promised).
Romans 4:20
he doubted not the promise of God, with unbelief, but was strengthened in faith, giving glory to God,

General references

2 Kings 4:17
But the woman conceived and gave birth to a son at the appointed time that Elisha had said unto her, according to the time of life.