There is a practical (or “human”) element of the Gospel that is frequently overlooked.
The gospel, or eu-vangelion, is Good News. It is a proclamation. It is communication among people. There is a speaking and hearing, in whatever form that takes. So you must take stock of the personal element. Any idea of the Gospel that reduce it, or limit it, to words in a book or a system of ethics is not the true Gospel.
God did not send a book, he gave his son as a person, born of a woman in the fullness of time, as fully human and fully divine. In this way, God communicates with us.
The Gospel is, in it’s essence, a person, not merely a book. The book expresses Christ. Tradition points to Christ also. The living Church points to Christ. It is all one with Christ. In Christ we live and move and have our being. Many Protestants we read here, (not all) view the scriptures in an idolatrous way, as if Christ is subject to the scriptures.