You look at the outward appearance of things! Let any one, who is confident that he belongs to Christ, reflect, for himself, again upon the fact--that we belong to Christ no less than he does.

Abraham's

You see, then, that those whose lives are based on faith are the Sons of Abraham.

Scripture says that Abraham had two sons, one the child of the slave-woman and the other the child of the free woman.

As well as father of the circumcised-to those who are not only circumcised, but who also follow our father Abraham in that faith which he had while still uncircumcised.

Nor, because they are Abraham's descendants, are they all his Children; but-'It is Isaac's children who will be called thy descendants.'

of whom it had been said-- 'It is through Isaac that there shall be descendants to bear thy name.'

Heirs

You, therefore, are no longer a slave, but a son; and, if a son, then an heir also, by God's appointment.

For the promise that he should inherit the world did not come to Abraham or his descendants through Law, but through the righteousness due to faith.

And if children, then heirs-heirs of God, and joint-heirs with Christ, since we share Christ's sufferings in order that we may also share his Glory.

Whether Paul, or Apollos, or Kephas, or the world, or life, or death, or the present, or the future-all things are yours!

That, by union with Christ Jesus and through the Good News, the Gentiles are co-heirs with us and members of one Body, and that they share with us in God's Promise.

that, having been pronounced righteous through his loving-kindness, we might enter on our inheritance with the hope of Immortal Life.

Are not all the angels spirits in the service of God, sent out to minister for the sake of those who are destined to obtain Salvation?

And therefore God, in his desire to show, with unmistakable plainness, to those who were to enter on the enjoyment of what he had promised, the unchangeableness of his purpose, bound himself with an oath.

It was faith that enabled Noah, after he had received the divine warning about what could not then be foreseen, to build, in reverent obedience, an ark in which to save his family. By his faith he condemned the world, and became possessed of that righteousness which follows upon faith.

Listen, my dear Brothers. Has not God chosen those who are poor in the things of this world to be rich through their faith, and to possess the Kingdom which he has promised to those who love him?

He who conquers shall enter into possession of these things, and I will be his God, and he shall be my Son.

General references

Or can it be that God is the God only of the Jews? Is not he also the God of the Gentiles?

And, therefore, those whose lives are based on faith share the blessings bestowed upon the faith of Abraham.

As for ourselves, brothers, we, like Isaac, are children born in fulfillment of a promise.