“The prophet is not asserting that Israel’s God has just ascended the throne, but is proclaiming the far grander, truly dynamic fact that Israel’s God does reign. And a remarkable declaration this is! The gods of the heathen could neither declare the past nor predict the future. Dead idols, they had no power. Israel’s God, however, was alive and He was sovereign.” (E. J. Young, The Book of Isaiah, Vol. 3, pages 551–552.
“Christ is being represented as being heard in the gospel when proclaimed by the sent messengers. The implication is that Christ speaks in the gospel proclamation.” (John Murray, The Epistle to the Romans, Vol. 2, p. 58).
This Friday evening I have the honour of preaching at the installation service of the Rev. Greg Hoadley as the new pastor of Redeemer Orthodox Presbyterian Church, Airdrie, AB. The text is Isaiah 52:7, as it ties in with Romans 10:14. Helpful also is this excerpt from an article in Ordained Servant, June-July 2008:
“The Reformation conception of preaching is embodied in the Second Helvetic Confession: ‘The preaching of the word of God is the word of God.’ Our Lord, the incarnate Word, has identified the preaching of his ordained spokesmen with his Word: ‘He who hears you hears Me’ (Luke 10:16). Herman Hoeksema correctly insisted that the Greek of Romans 10:14 should be translated as the American Standard Version has it: ‘And how shall they believe in Him whom they have not heard?’ as opposed to ‘Him of whom they have not heard?’ Thus it is ‘the preached Word rather than the written Word’ which is the primary means of grace. Christ is immediately present as the true Speaker in the preaching moment. ‘The implication is that Christ speaks in the gospel proclamation.’ Preaching is not speaking about Christ, but is Christ speaking.” (Gregory E. Reynolds, “God Still Speaks,” in Ordained Servant, https://opc.org/os.html?article_id=108). See link for references for quotations.