First: Our worship is a participation, mediated by the Spirit, in Christ’s Communion with the Father.
In this Trinitarian picture of worship, where does preaching fit in? Well, there is an eternal “conversation” happening among all the members of the Trinity. The divine words of Creation are presented as an “overflow” of this divine conversation. So to me, preaching is a Spirit-“infused” (and humanly articulated) mediation of the words between the Father, the Son, and the Holy Spirit.
Because the Spirit enables our union with Jesus, and because Jesus is joined to the Father, we find ourselves mystically and intimately in union with the whole Trinitarian God Himself. And so, preaching is–in a sense and at its best–an articulation and “listening in” on this eternal “trialogue” within the Godhead.
The world having been created through and for the Son means that the Father’s words to the Son are now his words to and for us. And this Word that is spoken to the Son by the Father is the Gospel. When it is offered to humans, this eternal, mysterious articulation of the Gospel in the Godhead is always mediated and contextualized in order to be received and perceived by the hearer. This is why the Bible is the way it is.
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