William S. Plumer (1802-1880) was an American Presbyterian minister and theologian recognized as a Reformed leader in the church in the 19th century.How do you know if you should enter into the Gospel ministry? Although this is a plain subject in its matter, it is exceedingly difficult in it practical application. Modest, humble, pious men are very apt to be deterred from all thoughts of entering the ministry, while others of doubtful piety, having a spice of self-conceit, and a dash of forwardness, frequently derive encouragement from such things. It is the purpose of this volume to state the biblical principles with all possible plainness, and endeavor in practice to guard carefully against their abuse. The text used Matthew 4:18-22, in the calling of the first disciples. There are specific and important lessons to be learned from that passage on being called to Christ's ordained office of church elder. Who ought to study the question, Am I Called? Men in Christ, who are not far advanced in life, and possess sound minds, may not dismiss the subject without a moment's serious thought. Topics covered are the nature of the call, evidences to the ministry, necessary qualifications, conviction of duty, and evidences that are requisite for a true call. This is a helpful work to aid the reader in determining whether or not they belong in the Gospel ministry.