The gospel is theological. This is a short-hand way of affirming two things. First, as 1 Corinthians 15 repeatedly affirms, God raised Christ Jesus from the dead (e.g. 5:15). More broadly, New Testament documents insist that God sent the Son into the world, and the Son obediently went to the cross because this was his Father’s will. It makes no sense to pit the mission of the Son against the sovereign purpose of the Father. If the gospel is centrally Christological, it is no less centrally theological.
—D. A. Carson, <em>The Gospel of Jesus Christ (1 Corinthians 15:1 — 19)</em>, 3