Romans 9:7

nor because they are the seed of Abraham are they all children. But, "In Isaac shall your Seed be called."

Genesis 21:12

And God said to Abraham, Let it not be grievous in your sight because of the boy and because of your slave woman. In all that Sarah has said to you, listen to her voice. For in Isaac your Seed shall be called.

Hebrews 11:18

of whom it was said that in Isaac your Seed shall be called,

Luke 3:8

Therefore bring forth fruits worthy of repentance, and do not begin to say within yourselves, We have Abraham for our father. For I say to you that God is able to raise up children to Abraham from these stones.

Luke 16:24-25

And he cried and said, Father Abraham, have mercy on me and send Lazarus so that he may dip the tip of his finger in water and cool my tongue, for I am tormented in this flame.

Luke 16:30

And he said, No, father Abraham, but if one should go to them from the dead, they would repent.

John 8:33

They answered Him, We are Abraham's seed and were never in bondage to anyone. How do you say, You will be made free?

John 8:37-39

I know that you are Abraham's seed, but you seek to kill Me because My Word has no place in you.

Galatians 4:23

But, indeed, he out of the slave-woman has been born according to flesh, and he out of the free woman through the promise;

Philippians 3:3

For we are the circumcision who worship God in the spirit and rejoice in Christ Jesus and have no confidence in the flesh;

Treasury of Scripture Knowledge

Summary

Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called.

General references

Bible References

Because

Luke 3:8
Therefore bring forth fruits worthy of repentance, and do not begin to say within yourselves, We have Abraham for our father. For I say to you that God is able to raise up children to Abraham from these stones.
Luke 16:24
And he cried and said, Father Abraham, have mercy on me and send Lazarus so that he may dip the tip of his finger in water and cool my tongue, for I am tormented in this flame.
John 8:37
I know that you are Abraham's seed, but you seek to kill Me because My Word has no place in you.
Philippians 3:3
For we are the circumcision who worship God in the spirit and rejoice in Christ Jesus and have no confidence in the flesh;

In isaac

Genesis 21:12
And God said to Abraham, Let it not be grievous in your sight because of the boy and because of your slave woman. In all that Sarah has said to you, listen to her voice. For in Isaac your Seed shall be called.
Hebrews 11:18
of whom it was said that in Isaac your Seed shall be called,

General references

Genesis 21:3
And Abraham called the name of his son that was born to him (whom Sarah bore to him) Isaac.
Genesis 25:5
And Abraham gave all that he had to Isaac.