How was the new concept of salvation by grace revealed, and to whom?

The risen Christ revealed this new concept after finishing redemption through His death, burial, and resurrection. He disclosed it to the Apostle Paul, making known salvation by faith because of God's grace, with nothing added. The Law was then done away in Christ, since something far better had come.

Les explains that when Christ finished the work of redemption by His death, burial, and resurrection, the whole system of Law was done away with and abolished, because now we have something far better. The Law had been given to Israel to prepare them for the coming of their Messiah, but in unbelief they failed it. God did not stop His plan of redemption; He carried it out anyway. Christ died, rose from the dead, and revealed to the Apostle Paul this whole new concept of salvation by faith because of God's grace, and nothing added. Many Jews remained blinded, still tied to the Law, with the veil still on Moses' head, unable to see that it had come to an end.

Where did the revelation of salvation by faith and grace come from?

The revelation of salvation by faith and grace came from the risen Christ, who revealed this new concept to the Apostle Paul. It was not derived from the Law, which was done away in Christ, but was God's gracious provision because Christ finished redemption through His death, burial, and resurrection.