You may listen to a podcast of this session on the Cove Presbyterian PodBean page.
During this session, we discussed how Paul used Abraham to show that the relationship between God and humanity was always based on grace and faith rather than the Law and works.
What then are we to say was gained by Abraham, our ancestor according to the flesh? For if Abraham was justified by works, he has something to boast about, but not before God. For what does the scripture say? “Abraham believed God, and it was reckoned to him as righteousness.” Now to one who works, wages are not reckoned as a gift but as something due. But to one who without works trusts him who justifies the ungodly, such faith is reckoned as righteousness. So also David speaks of the blessedness of those to whom God reckons righteousness apart from works: “Blessed are those whose iniquities are forgiven, and whose sins are covered; blessed is the one against whom the Lord will not reckon sin.”
Now the words, “it was reckoned to him,” were written not for his sake alone, but for ours also. It will be reckoned to us who believe in him who raised Jesus our Lord from the dead, who was handed over to death for our trespasses and was raised for our justification.