Though the prophets didn’t fully understand it, Paul still calls it the gospel of God, which he had promised afore by his prophets in the holy Scriptures. One of the most powerful arguments that we have for Jews or anyone is the fact that the entire gospel, from Christ’s birth to life to death and resurrection, was all foretold in detail in the Old Testament. We are simply preaching today what God has proclaimed in His Word for thousands of years!
"Paul, a servant of Jesus Christ, called to be an apostle, separated unto the gospel of God, (Which he had promised afore by his prophets in the holy scriptures)…"
—Romans:1:1Paul, a servant of Jesus Christ, called to be an apostle, separated unto the gospel of God,
See All... [1]–2
Links:
[1] https://www.thebereancall.org/bible/1/ROM/1/1#v1