The sermon centers on the urgent call to receive God's grace in earnest, emphasizing that the present moment is the day of salvation, not merely for the lost but for believers to live faithfully in the reality of Christ's redemptive work. Drawing from 2 Corinthians 6, it highlights the cost, character, and dangers of authentic Christian ministry—marked by suffering, purity, humility, and dependence on God's power—while contrasting Paul's genuine service with the false apostles' self-promotion. The heart of the message is a personal appeal to open one's affections: to widen the heart toward God, Scripture, fellow believers, and the lost, recognizing that grace overcomes the narrowness of sin and self-protection. Ultimately, the sermon calls for a renewed, Christ-centered response—where love, vulnerability, and obedience flow from the cross, and where every believer, whether in ministry or in faith, is challenged to live with open hearts in the light of God's grace.