William Perkins (1558-1602) was a powerful Puritan Reformed minister and theologian. Preaching today is in rapid decline. Pulpits all over the planet are filled with ministers who gain a paycheck, but give little else. William Perkins explains what it means to be truly called to the holy office of the minister. He does this from two principle texts: Job chapters 32-33 with emphasis on 33:23, and Isaiah 6:1-13. Perkins says that the words in Job contain, “a valuable description of a true minister,” how he is a messenger and an interpreter, one in a thousand. Then, he explains Isaiah 6:1-13 of Isaiah’s confirmation, showing Isaiah was fearful, stunned, cast down, comforted, and renewed in his commission to go and be sent of God to preach for Christ's glory. This work is not a scan or facsimile, has been carefully transcribed by hand being made easy to read in modern English, and has an active table of contents for electronic versions.