By definition, preaching is “a public declaration.” So, to “preach” the glory of God in the face of Jesus Christ is to publicly declare the beauty and worth of God by expounding the person of Jesus Christ (Col. 1:15; Heb. 1:3). In other words, the beauty and worth of God is revealed most clearly and with saving efficacy in Jesus’ life of ministry and teaching, sacrificial death, and resurrection. This message of such details is rightly called the Gospel. This revelation is in contrast to the revelation of the Mosaic Law, which Paul labels as a “ministry of death and condemnation that has been brought to an end” (2 Cor. 3:7-9). Under the New Covenant, Jesus Christ perpetually and forever exists as the supreme revelation of God. As such, the person and work of Jesus Christ should serve as the authoritative hermeneutical guide to understanding how previous revelations of God’s glory are to be understood in light of the New Covenant.
Therefore, when we “preach the glory of God in the face of Jesus Christ,” we are preaching the past and present realities of Jesus’ life of ministry and teaching, His sacrificial death, and His resurrection as the supreme revelation of God’s nature, which transforms lives both now and forever.