Scripture occasionally calls the gospel by names other than "the gospel
of the kingdom of God." For instance, the Bible speaks of "the gospel of
Christ" and "the gospel of God" (Romans 1:1,16).
The term "gospel of God" simply shows it originated with God. God delivered
the message to earth through His servants. Peter tells us the gospel was
sent from God through Jesus Christ. Notice Acts 10:36,37: "The word which
God sent to the children of Israel, preaching peace through Jesus Christ–He
is Lord of all–that word you know, which was proclaimed throughout
all Judea, and began from Galilee after the baptism which John preached
..."
The gospel of God is God's good news about the Kingdom of God. The gospel
of Jesus Christ is the good news Jesus brought as God's messenger. All
are the same gospel; all are part of the wonderful news of what God has
in store for humanity. In a similar manner, Paul sometimes used the term "my
gospel" (Romans 2:16; 16:25; 2 Timothy 2:8). This does not mean the message
originated with Paul, nor was it a gospel about Paul. It was a message
he received directly from Jesus Christ. "... The gospel which was preached
by me ... came through the revelation of Jesus Christ," he said (Galatians 1:11,12). Paul's use of the term "my gospel" is proper because he was
the one who proclaimed it.