Romans 4:16

Therefore, the promise comes by faith, so that it may be by grace and may be guaranteed to all his descendantsnot only to those who are of the law but also to those who are of the faith of Abraham, for he is the father of us all

Romans 9:8

In other words, it is not the children of the flesh who are the children of God, but the children of the promise are reckoned as descendants.

Romans 15:8

For I tell you that Christ has become a servant of the circumcised to show God's truth, to confirm the promises made to the patriarchs,

Galatians 3:22

But the Scripture has bound everyone under sin, so that that what was promised by faith in Jesus Christ might be given to those who believe.

Romans 3:24-26

and are justified freely by his grace through the redemption that is in Christ Jesus,

Romans 4:11

And he received the sign of circumcision, a seal of the righteousness which he had by faith while he was still uncircumcised, that he might be the father of all who believe but have not been circumcised, in order that righteousness might be reckoned to them.

Romans 5:1

Therefore, since we have 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 this is not of yourselves, it is the gift of God

Titus 3:7

so that we might be justified by his grace and become heirs according to the hope of eternal life.

Hebrews 6:13-19

For when God made a promise to Abraham, since he had no one greater by whom to swear, he swore by himself,

2 Peter 1:10

Therefore, brethren, be all the more eager to make your calling and election sure. For if you do these things, you will never fall;

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
and are justified freely by his grace through the redemption that is in Christ Jesus,
Romans 5:1
Therefore, since we have 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 we might be justified by his grace and become heirs according to the hope of eternal life.

The promise

Hebrews 6:13
For when God made a promise to Abraham, since he had no one greater by whom to swear, he swore by himself,
2 Peter 1:10
Therefore, brethren, be all the more eager to make your calling and election sure. For if you do these things, you will never fall;

But to

Romans 4:11
And he received the sign of circumcision, a seal of the righteousness which he had by faith while he was still uncircumcised, that he might be the father of all who believe but have not been circumcised, in order that righteousness might be reckoned to them.

The father

Romans 9:8
In other words, it is not the children of the flesh who are the children of God, but the children of the promise are reckoned as descendants.

General references

Luke 10:26
He said to him, "What is written in the law? How do you read?"
Galatians 3:9
So then those who are of faith are blessed with Abraham, the man of faith.
Galatians 4:28
Now you, brethren, like Isaac, are children of promise.