I made a typo. I said “Is this what is being implied?” It came out “It.”
What it means is that at all times and in all places human beings have been saved by grace through faith in what God had revealed to them about the person of Jesus Christ. It is not clear that Old Testament saints realized that the Messiah would come to die for them. Yet, it is clear that they had faith in God, they awaited His promised Messiah, and knew that they had to depend wholly upon His grace for their salvation. Abraham believed God and it was accounted to Him for righteousness.
The promise of the Messiah began with Adam. Who He was and what He would do was gradually revealed more and more; but men were always saved by placing their trust in Him, not works, ever.
The word “Gospel” means “good news”. There are several “good newses” in Scripture. The Good News of the Kingdom is the Good News that Christ has come as Messiah and will reign on earth. In and of itself it is not salvific, though the subject of the gospel IS - that is faith in Christ Jesus. The gospel of grace is what is salvific. At all times and in all places human beings have been saved by the good news of God’s grace alone. It is the ONLY way by which human beings are saved. When Jesus came preaching the gospel of the kingdom, the Jews were lost not because they didn’t believe the Kingdom was there, but because they didn’t believe in the King of the Kingdom.
That may be, but not because of any deficiency in the OT.
"For I delivered to you first of all that which I also received: that Christ died for our sins according to the Scriptures," (1 Cor. 15:3).
The only "Scriptures" Paul had was the OT.
The word “Gospel” means “good news”. There are several “good newses” in Scripture. ...
I understand what you are saying. Now, can you demonstrate from the Scriptures that the "gospel of the kingdom" and "gospel of grace" are two different things. E.g., that the kingdom gospel was not salvific and the grace gospel was.
I need Scripture.
The very first announcement about Jesus was that "He will save His people from their sins." (Matt. 1:21) We are then told that He is born "king of the Jews" (2:2).
We also read, "Now after John was put in prison, Jesus came to Galilee, preaching the gospel of the kingdom of God, and saying, 'The time is fulfilled, and the kingdom of God is at hand. Repent, and believe in the gospel.'" (Mark 1:14,15)
Now, what is it that Jesus was calling people to repent of and believe as He was preaching this gospel of the kingdom?