In continuity with the prophets, apostles, and evangelists, pastors stand before Christian congregations to publicly proclaim God’s Word, which they are to prayerfully prepare, carefully distinguishing between the Law and Gospel, in order to deliver it in such a way as to afflict the comfortable (unrepentant sinners) and comfort the afflicted (repentant sinners), that none should perish but all should reach repentance and receive the forgiveness of sins won by Christ Jesus on the cross.
The called and ordained pastor is God’s mouthpiece for the congregation as through Him the Good Shepherd’s Word sounds forth, which the Holy Spirit uses to call, gather, and enlighten His flock (Luke 10:16; Romans 10:13-17; 2 Peter. 3:9; Hebrews 13:7 & 17; 2 Timothy 4:1-5).