Chalmers states that "It is seldom that any of our tastes are made to disappear by a mere process of natural extinction," and "the heart must have something to cling to-and never, by its own voluntary consent, will it so denude itself of all its attachments." Therefore the superior affection for God through the free Gospel of Christ is necessary to displace worldly affections. This sermon, written by one of the foremost minds of his day, has become seminal for modern thought.