Thy counsels of old are faithfulness and truth. -Isaiah 25:1

There is a certain class of persons who think that a sermon must be a good one when they cannot understand it, and who are always impressed with a man whose words are long; and if his sentences are involved they feel, poor souls, that because they do not know what he is talking about, there is no doubt that he is a very wise and learned man; and after a while when he does propound something that they can catch at, though it may be quite contrary to what they have learned at their mother’s knee or from their father’s Bible, yet they are ready to be led off by it. There are many men nowadays who seem to spend their time in nothing else but in spinning new theories, and inventing new systems, gutting the gospel taking the very soul and bowels out of it, and leaving there nothing but the mere skin and outward bones. The life and marrow of the gospel is being taken away by their learning, by their philosophies, by their refinements, by their bringing everything down to the test of this wonderfully enlightened nineteenth century to which we are all, I suppose, bound to defer. But a voice comes to us, “let no man beguile you of your reward.” Stand fast to the old truths; they will outlast all these philosophies. Stand fast to the old way of living; it will outlast all the inventions of men. Stand fast by Christ, for you want no other object of worship but Himself. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/3466.cfm