Romans 4:13

Besides, the promise that he should possess the world, was not made to Abraham, or to his posterity in consideration of the law, but with regard to the righteousness by faith.

Galatians 3:29

and if you belong to Christ, you are Abraham's offspring, and his heirs by virtue of the promise.

Romans 9:8

that is, the children by natural descent are not thereby the children of God: but the children of the promise are alone considered as his posterity.

Galatians 3:16-18

now to Abraham and his offspring were the promises made. he does not say, "to offsprings," as if he spoke of many; but as speaking of one, "and to thy offspring," which means Christ.

Treasury of Scripture Knowledge

Summary

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

Through the

But through

General references

Bible References

Through the

Galatians 3:16
now to Abraham and his offspring were the promises made. he does not say, "to offsprings," as if he spoke of many; but as speaking of one, "and to thy offspring," which means Christ.

But through

Romans 4:11
and he received the sign of circumcision, as a seal of the justification by that faith, which the uncircumcised have: that he might be the father of all those who believe, tho' they are uncircumcised, that it might be accounted to them also for righteousness:

General references

Galatians 4:28
Now we, my brethren, as Isaac was, are the children of the promise.