Charles H. Spurgeon on Psalms 14:1

"The fool," etc. The world we live in is a world of fools. The far greater part of mankind act a part entirely irrational. So great is their infatuation, that they prefer time to eternity, momentary enjoyments to those that shall never have an end, and listen to the testimony of Satan in preference to that of God. Of all folly, that is the greatest, which relates to eternal objects, because it is the most fatal, and when persisted in through life, entirely remediless. A mistake in the management of temporal concerns may be afterwards rectified. At any rate, it is comparatively of little importance. But an error in spiritual and eternal matters, as it is in itself of the greatest moment, if carried through life, can never be remedied; because after death there is no redemption. The greatest folly that any creature is capable of, is that of denying or entertaining unjust apprehensions of the being and perfections of the great Creator. Therefore in a way of eminence, the appellation of fool is given by the Spirit of God, to him who is chargeable with this guilt. "The fool hath said in his heart, There is no God." John Jamieson, M.A., 1789.