Romans 4:16-17

Therefore, the promise comes by faith, so that it may be by grace and may be guaranteed to all Abraham's offspring--not only to those who are of the law but also to those who have the faith of Abraham. He is the father of us all. As it is written: "I have made you a father of many nations." He is our father in the sight of God, in whom he believed--the God who gives life to the dead and calls into being things that are not.

the promise comes by faith, so that it may be by grace 

Romans 3:24  ... and all are justified freely by his grace through the redemption that came by Christ Jesus.

Ephesians 2:8-9  For it is by grace you have been saved, through faith--and this is not from yourselves, it is the gift of God--not by works, so that no one can boast. 

Titus 2:11  For the grace of God has appeared that offers salvation to all people.

Hebrews 4:16  Let us then approach God's throne of grace with confidence, so that we may receive mercy and find grace to help us in our time of need.

and may be guaranteed to all Abraham's offspring 

Romans 15:8-9  For I tell you that Christ has become a servant of the Jews on behalf of God's truth, so that the promises made to the patriarchs might be confirmed and, moreover, that the Gentiles might glorify God for his mercy. As it is written: "Therefore I will praise you among the Gentiles; I will sing the praises of your name." (2 Samuel 22:50; Psalm 18:49)

Romans 3:29  Or is God the God of the Jews only? Is he not the God of the Gentiles too? Yes, of the Gentiles too, ...

He is the father of us all 

Romans 4:11-12  And he received circumcision as a sign, a seal of the righteousness that he had by faith while he was still uncircumcised. So then, he is the father of all who believe but have not been circumcised, in order that righteousness might be credited to them. And he is then also the father of the circumcised who not only are circumcised but who also follow in the footsteps of the faith that our father Abraham had before he was circumcised.

"I have made you a father of many nations." 

Genesis 17:5  "No longer will you be called Abram; your name will be Abraham, for I have made you a father of many nations."

the God who gives life to the dead and calls into being things that are not 

Genesis 15:4  Then the word of the LORD came to him (Abram): "This man (Eliezer of Damascus) will not be your heir, but a son who is your own flesh and blood will be your heir."

Genesis 18:10  Then one of them said, "I will surely return to you about this time next year, and Sarah your wife will have a son."

(parentheses are mine)

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