For the sum of the gospels hath its oirginal hence, from God having become man and having been crucified and having risen again. This gospel also Gabriel preached to the Virgin, this also the prophets to the world, this also the apostles all of them.
John Chrysostom, 347- 407 AD, Homilies on First Corinthians, Homily XXVIII, 15:2 (translated by Rev. Talbot W. Chambers, Nicene and Post-Nicene Fathers, Philip Schaff, Hendrickson Publishers, 2012, First Series, Vol. 12, p. 227)
What is the significance of this as the gospel? How does it differ from competing messages?