Heres a few showing the division between them a little
Gal 4:21 Tell me, ye that desire to be under the law, do ye not hear the law?
And Paul started here in the law saying,
Gal 4:22 For it is written, that Abraham had two sons, the one by a bondmaid, the other by a freewoman.
And he puts forth the differences between them
Gal 4:23 But he who was of the bondwoman was born after the flesh ; but he of the freewoman was by promise
Gal 4:24 Which things are an allegory: for these are the two covenants; the one from the mount Sinai, which gendereth to bondage, which is Agar.
John 8:33 They answered him, We be Abraham's seed, and were never in bondage to any man: how sayest thou, Ye shall be made free?
Jesus acknowledges them as the seed of Abraham
John 8:37 I know that ye are Abraham's seed; but ye seek to kill me, because my word hath no place in you.
Paul also says,
Romans 9:7 Neither, because they are the seed of Abraham, are they all children: but, In Isaac shall thy seed be called.
Then he divides the children of the flesh (who are Abrahams seed, after the flesh) and the children of the promise (who belong to one, to Abrahams seed, which is Christ) children of the promise (Spirit)
Romans 9:8 That is,
They which are the children of the flesh, these are not the children of God: but the children of the promise are counted for the seed.
Gal 3:16 Now to Abraham and his seed were the promises made. He saith not, And to seeds, as of many; but as of one, And to thy seed, which is Christ.
Gal 3:29 And if ye be Christ's, then are ye Abraham's seed, and heirs according to the promise.
The promise (the Spirit)
Luke 24:49 And, behold, I send the promise of my Father upon you
Now if any man have not the Spirit of Christ, he is none of his (Romans 8:9)
Same picture emmerges as then even so now as Paul said.
Gal 4:29 But as then he that was born after the flesh persecuted him that was born after the Spirit, even so it is now.
Born after the flesh (Abrahams seed) after the flesh, and children of the promise (as belonging to Christ) Abrahams seed (as of one) not many in that way.