If you ask anybody, they always say, the gospel is salvation, or an explanation of salvation, or a strategy how to be saved as in
PB’s illustration. The gospel is NOT a cleverly laid out theory about salvation, where only the knowledgeable and learned people can know and preach. The gospel is not a theory. The gospel is simple and easy! Even a child can proclaim and preach it.
The gospel is a person, His name is JESUS! Example: The gospel of “God”, is Jesus Christ who is the only true and Sovereign God etc.etc. The gospel of “Creation”, is Jesus who created all things, and nothing came into being apart from Him etc.etc.
It is totally up to you, what scriptural passages you like to use. The gospel of “Salvation” is Jesus Christ and there is no other name given whereby you must be saved. Etc. etc. again it’s totally up to you, how to portray Jesus in salvation. The gospel of “Redemption”, the gospel of “The Kingdom of God” etc.etc. again it is always Jesus Christ proclaimed.
This is the gospel which I preach. Paul said, “the gospel which I Paul have become a servant.” Col. 1:15-23 Take note, everything points to Jesus. If we lift up Jesus, He will draw all men to Himself. (Paul G)