This book is a call to return to the passion of preaching with the intention of leading sinners to see the need and the call (the invitation) of the Gospel of Jesus Christ. It emphasizes the importance of maintaining the balance between the correct doctrine of God's redemptive grace and the urgency of the evangelistic call and the plea for repentance and faith in Christ. On the Reformed side, there is sometimes a tendency to maintain orthodoxy without the intentionality of calling the sinner to come to Christ, when in reality understanding how God works in the hearts of sinners leads us to proclaim God's sincere invitation for all to come to Christ as the only way to peace with God and eternal life. This book concludes by studying the important work of the Holy Spirit in both the sinner and the preacher to stir the evangelist's heart; and it also relates private and public prayer to preaching for conversions. This book is recommended for every pastor, leader, evangelist, teacher, and for anyone who desires to see conversions through God's power for salvation.