Had an interesting thought a little while ago. The term ‘gospel’ is stated in the NT 51 times I believe. Of those 51 times, the term spans from Matthew to Revelation. But how can the gospel be referring to itself, if it was in the process of being written? As it says in Mark 16:15
“And He said to them, ‘Go into all the world and preach the gospel to every creature.’”
So in the original greek translation we have the word ‘gospel’ to translate to ‘good news.’ What was the good news? The Messiah! This did not include the books of Matthew, Mark, Luke, and John - as they had not been written yet, so it couldn’t be referring to itself.
Now, I think we can use the ‘gospels’ to better understand the Messiah - but we don’t need to stuff the knowledge of the gospel down people’s throats. The main message that should be transmitted is what the Messiahs role is and how love plays a part.