Melanchthon himself was one of Luther's chief aids, and was responsible for the writing of the Augsburg Confession, the Apology to the Augsburg Confession, and the Treatise on the Power and Primacy of the Pope.
In the times of crisis after Martin Luther's death, Chemnitz was able with a handful of others to produce the Lutheran Book of Concord. Chemnitz was himself responsible for much of the Formula of Concord.
Martin Chemnitz wrote many excellent theological works that are considered essential to Lutheranism and are considered required reading for men in seminary who seek to become pastors. Some of these include:
To this end he wrote Ministry, Word, and Sacrament: An Enchiridion.This little volume is the handbook describing the kinds of knowledge, discernment, skills, and responsibilities any pastor was expected to have and exercise in the faithful fulfillment of his office as pastor. So if you would wish to know both how to help your own pastor and the kinds of responsibilities he undertakes, it would be helpful to get this book, read through it thoroughly and keep your pastor in your prayers.
Let us then look at the words of the man mainly responsible for the Lutheran Book of Concord and the survival of the true Biblical Teaching of God's Word (pp. 46-8):
Q51: What does God require of ministers of the church, and how does He want them to dispense His mysteries?
Paul covers this very briefly 1 Corinthians 4:2,4. Let the dispensers of the mysteries of God therefore set before themselves the future judgment of God, in which they will be rewarded according to the measure of faithfulness before the judgment seat of Christ.
Q52: What things are required to render that faithfulness?
Very many. For since he who wants to teach in the church ought to be certain that he speaks the oracles of God, 1 Peter 4:11, or what is right before God, Jeremiah 17:16, and to preserve knowledge or doctrine, Malachi 2:7:
First, then it is necessary that he rightly hold fast and understand the principles of sound doctrine and that he be equipped with an average gift to set forth the sum of heavenly doctrine clearly and humbly. 1 Timothy 3:2; Titus 2:2; 3:17. For how shall he render due faithfulness in office, who himself either does not understand the doctrine or does not know how rightly to teach and explain the meaning to others?
Second. Let him speak the Word of God not only in general, but let him with special love and diligence so form and apply his sermons to himself and the hearers that the whole church is edified thereby. 1 corinthians 14:12, 26; Ephesians 4:11-12. This is what happens when both in sermons and in his whole ministry he sets before himself the chief parts that the Holy Spirit Himself has prescribed, so that he namely refers and directs all things either to doctrine, or to comfort, or to patience, or to directive, or to reproof, or to correction, or to repentance, or to faith, or to righteousness, or new obedience in good works commanded by God. Romans 15:4; 1 Corinthians 10:11; 2 Timothy 3:16; Titus 1:7, 9; Acts 20:21; 26:20. And in Ezekiel 34:15-17 the office of a good and faithful pastor is well described, namely that he feed the sheep, seek the lost, lead back the erring, care for the wounded and weak, encourage the strong, distinguish sheep from goats, etc.
Third. A minister of the Word ought not only teach things true and in harmony with the divine Word. But he ought also render his faithfulness to God and the church entrusted to him in this, that he at the same time rightly feed the sheep and hold off the wolf from the sheepfolds, or as Luther says, he should do both, nourish and defend. He ought therefore neither defend nor cover up or paper over false doctrine, but oppose it openly and plainly and warn his flock to beware of it. Ezekiel 13:10; John 10:5; Matthew 7:15; Titus 1:9-11, 13; Acts 20:29, 31. But he is not to stir up all kinds of unnecessary disputes and strifes about words instead of a discourse, and arouse his hearers with untimely clamoring, but only fight against adversaries in necessary conflicts, without which purity of doctrine cannot be retained. And in these very things let him always have regard to his hearers, as to what is useful and necessary for their edification, so that they might continue in sound doctrine and be able to protect themselves against the ferment of false doctrine.
Fourth. Let a faithful minister of the Word consider that he has been set by God as a watchman and lookout of the church, so that, when he notices that some of his sheep have gone aside from the way of the righteous and have turned aside into the way of sinners, he be neither a sleeping and blind watchman nor a dumb dog. Isaiah 56:10. Nor ought he provide soft pillows for the impious. Ezekiel 13:18. But let him cry out against sins with a loud voice. Isaiah 58:1. And let him be instant in prayer and exhortations, threats and rebukes in all patience and teaching, both in season and in spirit of gentleness and also out of season with severe rebukes. Ezekiel 3:17; 33:7; 2 Timothy 4:2; Titus 2:15; 1 Corinthians 4:21. For through these means God recalls the erring and raises the fallen. Otherwise, if a pastor neglect this, God will require the blood of lost sheep at his hand. Ezekiel 3:18.
Fifth. He ought not give anyone offense by an evil life, but is to be a type and example for the flock of the Lord with a pious and honorable way of life. 1 Timothy 4:12; 2 Thessalonians 3:9; Titus 2:7; 1 Peter 5:3; Philippians 3:17. For as Augustine says,
A wicked pastor only destroys as much by life as he builds up by teaching, if indeed he builds anything who lives wickedly, for his teaching is cold who is not affected by the doctrine that he teaches in place of God and does not live it.Nazianzen was accustomed to say:
He that teaches well, but lives ill, takes away with one hand what he gives with the other.Sixth. Since no one is of himself fit and sufficient for so great and arduous an office (2 Corinthians 2:16; 3:5), and no one can successfully sow in the church unless divine blessing be added (1 Corinthians 3:6), therefore let the minister of the Word earnestly and ardently pray, and in united prayers with the church diligently commit both himself and his ministry as well as the whole church to God, following the example of Paul in nearly all his epistles. Cf. 1 Samuel 12:23. And let the ministers of the church often and diligently consider all these things that belong to the faithfulness of a true pastor, that, with the Holy Spirit of God governing and assisting them, they might try in the ministry to render that faithfulness to God and know, that if they do this, their labor will not be in vain in the Lord (1 Corinthians 15:58), but that they will by the grace of God save both themselves and their hearers (1 Timothy 4:16), or at least their souls go free (Ezekiel 3:19). But if they be found lazy, negligent, and unfaithful, let them know that they must render account before Christ, the chief of shepherds, on the day of judgment.