How many gospels are there?
This depends on a number of things. Primarily, what is the gospel? Who is it for? What does the message of good news include?
Of course traditionally we refer to Matthew, Mark, Luke, and John as the four gospels. But Paul seems to consider his message in the book of Romans as the gospel too, although in another sense.
I wanted to say more about the organic emphasis in what’s termed sonship or adoption. If not in popular theology, at least in the Bible there is a definite emphasis placed on our growth in and experience of God’s life. As amazing as reconciliation is, the Bible itself says that there is something “much more.”
“Much more we will be saved in His life, having been reconciled.” -Romans 5:10