So all who put their faith in Christ share the same blessing Abraham received because of his faith. (3:9)
Through Christ Jesus, God has blessed the Gentiles with the same blessing he promised to Abraham, so that we who are believers might receive the promised Holy Spirit through faith.(3:14)
For if the inheritance depends on the law, then it no longer depends on the promise; but God in his (unmerited favor) gave it to Abraham through a promise.(3:18 NIV)
For you are all children of God through faith in Christ Jesus.(3:26)
And now that you belong to Christ, you are the true children of Abraham. You are his heirs, and God’s promise to Abraham belongs to you. (3:26)
God sent Jesus to buy freedom for us who were slaves to the law, so that he could adopt us as his very own children. And because we are his children, God has sent the Spirit of his Son into our hearts, prompting us to call out, “Abba, Father.”
Now you are no longer a slave but God’s own child.
And since you are his child, God has made you his heir. (4:5-7)
Paul’s letter to the Galatians. NTL
It was based on this promise that Abraham’s servant in faith asked for a bride for Isaac. That is, this is what a servant and not the receiver of the blessing was able to do. It was based on this promise that Isaac was able to produce 100 fold in famine. It was on this promise, in faith, Isaac blessed Jacob with the first born promise, and it happened just as it was spoken, even though Jacob took it by deception. It was on this promise that Joseph, in faith, was made the second highest ruler in Egypt, and by faith had his bones taken out and moved to the promised land.
We have the same promise of blessing by unmerited favor, not by works. On this promise a daughter of Abraham received healing from the oppression of Satan on her physical body (bent over for 18 years). On this promised blessing healing is called by Jesus as everyday normal bread. On this promise, even those outside of it, bent down, picked up its crumbs and received power to cast out demons for their outsider children. On this promise, the Spirit of God and miracles are given to God’s children.