I was just again meditating on the Gospel and how it can be corrupted. I was reminded when I was in charismania. The pastors I had used the term Gospel but it was some vague concept. One even pointed out the Bible as the Gospel! One denomination even have the motto (as I said in the past blog) All the Gospel -- meaning they have all the goodnews. Yet, when I first believed I only knew of just one - Jesus paid for me. Then you get involve in church and you get to hear that there is more coming -- bigger and better. My sinful sould loved that false doctrine, you can have heaven here on earth too now that Jesus is your Lord. It was similar to a fairy tale story. It was a Christianity whose theology is Glory rather than the Cross.
Yes, we can corrupt the Gospel, our sinful soul is a creature of the Law. We can turn the promise to performance and even fool ourselves that we are actually pulling it off. The Gospel is not intuitive, it is easier to believe God helps those who help themselves rather than believe God helps those who are helpless.
From the time we were born, we have always looked into ourselves. The Gospel is outside and makes us look not within, but without. Don't kid yourself, you and I can muck-up the Gospel. People did it in the past, and people still do it today.