" the New Testament authors, building especially on the Isaianic vision, define the “gospel” as Jesus’s effecting the long-awaited return of God himself as King, in the power of the Spirit bringing his people back from exile and into the true promised land of a new creation, forgiving their sins,[42] and fulfilling all the promises of God and the hopes of his people. "

― Jonathan T. Pennington , Reading the Gospels Wisely: A Narrative and Theological Introduction