I like this definition of the gospel from John Dickson:
“The gospel is the announcement that God has revealed his kingdom and opened it up to sinners through the birth, teaching, miracles, death and resurrection of the Lord Jesus Christ, who will one day return to overthrow evil and consummate the kingdom for eternity.”
Later in a section titled “Underestimating the Mission” Dickson makes a helpful distinction between proclaiming the gospel and promoting the gospel.
I want to make a distinction throughout this book between the specific activity of proclaiming the gospel and the broader category of promoting the gospel. The former is properly called “evangelism,” a word that derives from the New Testament term evangelizomai, which only ever means “announcing (grand) news.” The wider category of promoting the gospel includes any and every activity that draws others to Christ (including, of course, evangelism). People sometimes use the words “mission,” “out-reach” or “witness” for this larger work, but I prefer the expression “promoting the gospel” (I’m sure I pinched this from someone else but I can’t remember from whom) because it reminds us that at the heart of our mission to the world is the news about Christ, the gospel. In my view, when “mission” becomes disconnected from the gospel, as it sadly does in some church circles, it no longer deserves to be called Christian mission.
– John Dickson in The Best Kept Secret of Christian Mission: Promoting the Gospel with More Than Our Lips








