By Brad East (originally posted on Resident Theologian) 1. The principal subject matter for preaching, always and everywhere, is the triune God of Israel attested and revealed in the good news about Jesus, the Lord and Messiah of Israel. If a sermon could not plausibly be said to have been about that, it was not a sermon. 1.1. This is primarily a substantive point, that is, regarding what a sermon is “about,” which doesn’t mean that counting the number of times…