The Gospel as an Explosion of Good News

The gospel is neither simply an extension of the old covenant, nor is it to be interpreted merely as a commentary on the Jewish Scriptures, but it is an explosion of God's good news. The theological paradox is that the radically new has already been testified to by the Old (cf. Mk 1:12; Heb 1:1).

—Brevard S. Childs, "The Canon in Recent Biblical Studies: Reflections on an Era," in Canon and Biblical Interpretation, 53.