John Wesley passionately preaches on the concept of Free Grace, emphasizing that God's love and grace are freely given to all, regardless of human merit or actions. He argues against the doctrine of predestination, asserting that it undermines the essence of Christian faith and the call to holiness, love, and good works. Wesley highlights that the belief in a predetermined fate for some to be saved and others to be damned contradicts the nature of God as loving and just. He calls for a return to the understanding that salvation is available to everyone who chooses to accept it, reinforcing the importance of preaching and the hope of redemption. Ultimately, Wesley's message is a clarion call to embrace the fullness of God's grace and to live out that grace in love and action.