Hebrews 11:11

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 considered that the One who had promised was faithful.

Genesis 18:11-14

Abraham and Sarah were old and getting on in years. Sarah had passed the age of childbearing.

Hebrews 10:23

Let us hold on to the confession of our hope without wavering, for He who promised is faithful.

Genesis 17:17-19

Abraham fell facedown. Then he laughed and said to himself, “Can a child be born to a hundred-year-old man? Can Sarah, a ninety-year-old woman, give birth?”

Genesis 21:1-2

The Lord came to Sarah as He had said, and the Lord did for Sarah what He had promised.

Luke 1:36

And consider your relative Elizabeth—even she has conceived a son in her old age, and this is the sixth month for her who was called childless.

Romans 4:20-21

He did not waver in unbelief at God’s promise but was strengthened in his faith and gave glory to God,

1 Peter 3:5-6

For in the past, the holy women who put their hope in God also beautified themselves in this way, submitting to 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
Abraham fell facedown. Then he laughed and said to himself, “Can a child be born to a hundred-year-old man? Can Sarah, a ninety-year-old woman, give birth?”
Genesis 18:11
Abraham and Sarah were old and getting on in years. Sarah had passed the age of childbearing.
Genesis 21:1
The Lord came to Sarah as He had said, and the Lord did for Sarah what He had promised.
Luke 1:36
And consider your relative Elizabeth—even she has conceived a son in her old age, and this is the sixth month for her who was called childless.
1 Peter 3:5
For in the past, the holy women who put their hope in God also beautified themselves in this way, submitting to their own husbands,

Because

Hebrews 10:23
Let us hold on to the confession of our hope without wavering, for He who promised is faithful.
Romans 4:20
He did not waver in unbelief at God’s promise but was strengthened in his faith and gave glory to God,

General references

2 Kings 4:17
The woman conceived and gave birth to a son at the same time the following year, as Elisha had promised her.

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.