Romans 4:16
Therefore it is by faith that it may be by grace, that the promise may be sure to all the posterity, not to that of the law only but to that of the faith of Abraham, who is a father of us all,
Romans 9:8
that is, the children of the flesh are not the children of God, but the children of the promise are accounted the posterity.
Romans 15:8
For I say that Christ was made a minister of the circumcision for the truth of God, to confirm the promises of the fathers,
Galatians 3:22
but the Scripture has shut up all under sin, that the promise of the faith of Jesus Christ may be given to them that believe.
Romans 3:24-26
being justified freely by his grace through the redemption in Christ Jesus,
Romans 4:11
And he received the symbol of circumcision, a seal of the righteousness of the faith which was in uncircumcision, so that he became the father of all that believe in uncircumcision, that righteousness may also be accounted to them,
Romans 5:1
Having been justified therefore by faith, we have peace with God through our Lord Jesus Christ,
Galatians 3:7-12
Know, therefore, that those of faith, these are children of Abraham.
Ephesians 2:8
For by grace are you saved through the faith; and that not of you; [it is] the gift of God;
Titus 3:7
that having been justified by his grace we should become heirs according to the hope of eternal life.
Hebrews 6:13-19
For God haying promised Abraham, when he could not swear by a greater, swore by himself,
2 Peter 1:10
Wherefore, brothers, use the greater diligence to make your calling and election sure; for doing these things you shall never fall.