According to 1 Corinthians 15:3-5, the gospel is the news that Christ has died, Christ was buried, Christ was raised, and that Christ appeared.
“The gospel is the story of the crucial events in the life of Jesus Christ.”
Scott McKnight, The King Jesus Gospel, 49
“To gospel is to proclaim, and to declare something about something. To put this together: the gospel is to announce good news about key events in the life of Jesus Christ. To gospel for Paul was to tell, announce, declare, and shout aloud the Story of Jesus Christ as the saving news of God.” (p. 49-50)
May you delight in giving the gospel of this good news to everyone you know, in every opportunity you are given, every day that you have.