Romans 4:19

And being not weak in faith, he considered not his own body now dead, when he was about an hundred years old, neither yet the deadness of Sara's womb:

Genesis 17:17

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

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.

Matthew 6:30

Wherefore, if God so clothe the grass of the field, which to day is, and to morrow is cast into the oven, shall he not much more clothe you, O ye of little faith?

Matthew 8:26

And he saith unto them, Why are ye fearful, O ye of little faith? Then he arose, and rebuked the winds and the sea; and there was a great calm.

Matthew 14:31

And immediately Jesus stretched forth his hand, and caught him, and said unto him, O thou of little faith, wherefore didst thou doubt?

Mark 9:23-24

Jesus said unto him, If thou canst believe, all things are possible to him that believeth.

John 20:27-28

Then saith he to Thomas, Reach hither thy finger, and behold my hands; and reach hither thy hand, and thrust it into my side: and be not faithless, but believing.

Romans 4:20-21

He staggered not at the promise of God through unbelief; but was strong in faith, giving glory to God;

Romans 14:21

It is good neither to eat flesh, nor to drink wine, nor any thing whereby thy brother stumbleth, or is offended, or is made weak.

Hebrews 11:11-19

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.

Treasury of Scripture Knowledge

Summary

And being not weak in faith, he considered not his own body now dead, when he was about an hundred years old, neither yet the deadness of Sara's womb:

Bible References

Being

Romans 4:20
He staggered not at the promise of God through unbelief; but was strong in faith, giving glory to God;
Romans 14:21
It is good neither to eat flesh, nor to drink wine, nor any thing whereby thy brother stumbleth, or is offended, or is made weak.
Matthew 6:30
Wherefore, if God so clothe the grass of the field, which to day is, and to morrow is cast into the oven, shall he not much more clothe you, O ye of little faith?
Matthew 8:26
And he saith unto them, Why are ye fearful, O ye of little faith? Then he arose, and rebuked the winds and the sea; and there was a great calm.
Matthew 14:31
And immediately Jesus stretched forth his hand, and caught him, and said unto him, O thou of little faith, wherefore didst thou doubt?
Mark 9:23
Jesus said unto him, If thou canst believe, all things are possible to him that believeth.
John 20:27
Then saith he to Thomas, Reach hither thy finger, and behold my hands; and reach hither thy hand, and thrust it into my side: and be not faithless, but believing.

Considered

Genesis 17:17
Then Abraham fell upon his face, and laughed, and said in his heart, Shall a child be born unto him that is an hundred years old? and shall Sarah, that 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.
Hebrews 11:11
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

Genesis 17:24
And Abraham was ninety years old and nine, when he was circumcised in the flesh of his foreskin.
Genesis 21:5
And Abraham was an hundred years old, when his son Isaac was born unto him.
Psalm 22:4
Our fathers trusted in thee: they trusted, and thou didst deliver them.

King James Version Public Domain