Galatians 3:29

and do not suppose that you can say to yourselves, ‘We have Abraham for our father’; for I say to you that from these stones God is able to raise up children to Abraham.

For the promise to Abraham or to his seed that he would be heir of the world was not through the Law, but through the righteousness of faith.

and if children, also heirs, heirs of God and fellow heirs with Christ, if indeed we suffer with Him so that we may also be glorified with Him.

That is, the children of the flesh are not the children of God, but the children of the promise are considered as seed.

and you belong to Christ, and Christ belongs to God.

And you brothers, in accordance with Isaac, are children of promise.

And those who will walk in step with this rule, peace and mercy be upon them, and upon the Israel of God.

that the Gentiles are fellow heirs and fellow members of the body, and fellow partakers of the promise in Christ Jesus through the gospel,