" Because the gospel is news, good news… it is to be announced; that is what one does with news. The essential heraldic element in preaching is bound up with the fact that the core message is not a code of ethics to be debated, still less a list of aphorisms to be admired and pondered, and certainly not a systematic theology to be outlined and schematized. Though it properly grounds ethics, aphorisms, and systematics, it is none of these three: it is news, good news, and therefore must be publicly announced2. "

― Timothy J. Keller , Center Church: Doing Balanced, Gospel-Centered Ministry in Your City