Romans 4:16

For this reason it is by faith, in order that it may be in accordance with grace, so that the promise will be guaranteed to all the descendants, not only to those who are of the Law, but also to those who are of the faith of Abraham, who is the father of us all,

Romans 9:8

That is, it is not the children of the flesh who are children of God, but the children of the promise are regarded as descendants.

Romans 15:8

For I say that Christ has become a servant to the circumcision on behalf of the truth of God to confirm the promises given to the fathers,

Galatians 3:22

But the Scripture has shut up everyone under sin, so that the promise by faith in Jesus Christ might be given to those who believe.

Isaiah 51:2

“Look to Abraham your father
And to Sarah who gave birth to you in pain;
When he was but one I called him,
Then I blessed him and multiplied him.”

Romans 3:24-26

being justified as a gift by His grace through the redemption which is in Christ Jesus;

Romans 4:11

and he received the sign of circumcision, a seal of the righteousness of the faith which he had while uncircumcised, so that he might be the father of all who believe without being circumcised, that righteousness might be credited to them,

Romans 5:1

Therefore, having been justified by faith, we have peace with God through our Lord Jesus Christ,

Galatians 3:7-12

Therefore, be sure that it is those who are of faith who are sons of Abraham.

Ephesians 2:5

even when we were dead in our transgressions, made us alive together with Christ (by grace you have been saved),

Ephesians 2:8

For by grace you have been saved through faith; and that not of yourselves, it is the gift of God;

Titus 3:7

so that being justified by His grace we would be made heirs according to the hope of eternal life.

Hebrews 6:13-19

For when God made the promise to Abraham, since He could swear by no one greater, He swore by Himself,

2 Peter 1:10

Therefore, brethren, be all the more diligent to make certain about His calling and choosing you; for as long as you practice these things, you will never stumble;

Treasury of Scripture Knowledge

Summary

Therefore it is of faith, that it might be by grace; to the end the promise might be sure to all the seed; not to that only which is of the law, but to that also which is of the faith of Abraham; who is the father of us all,

But to

The father

Bible References

Of faith

Romans 3:24
being justified as a gift by His grace through the redemption which is in Christ Jesus;
Romans 5:1
Therefore, having been justified by faith, we have peace with God through our Lord Jesus Christ,
Galatians 3:7
Therefore, be sure that it is those who are of faith who are sons of Abraham.
Ephesians 2:5
even when we were dead in our transgressions, made us alive together with Christ (by grace you have been saved),
Titus 3:7
so that being justified by His grace we would be made heirs according to the hope of eternal life.

The promise

Hebrews 6:13
For when God made the promise to Abraham, since He could swear by no one greater, He swore by Himself,
2 Peter 1:10
Therefore, brethren, be all the more diligent to make certain about His calling and choosing you; for as long as you practice these things, you will never stumble;

But to

Romans 4:11
and he received the sign of circumcision, a seal of the righteousness of the faith which he had while uncircumcised, so that he might be the father of all who believe without being circumcised, that righteousness might be credited to them,

The father

Romans 9:8
That is, it is not the children of the flesh who are children of God, but the children of the promise are regarded as descendants.
Isaiah 51:2
“Look to Abraham your father
And to Sarah who gave birth to you in pain;
When he was but one I called him,
Then I blessed him and multiplied him.”

General references

Genesis 13:16
I will make your descendants as the dust of the earth, so that if anyone can number the dust of the earth, then your descendants can also be numbered.
Luke 10:26
And He said to him, “What is written in the Law? How does it read to you?”
Galatians 3:9
So then those who are of faith are blessed with Abraham, the believer.
Galatians 4:28
And you brethren, like Isaac, are children of promise.