62. Accordingly, the office of a priest is twofold; first, that he turns to God and prays for himself and for his people; second, that he turns from God to men through instruction and the Word. Says Samuel: "Far be it from me that I should sin against Jehovah in ceasing to pray for you: but I will instruct you in the good and the right way," 1 Sam 12, 23. He is aware that this is his proper office. 63. Therefore, the ministry is rightly praised and esteemed as the highest favor. When this has been lost or has been vitiated, not only prayer becomes impossible, but men are simply in the power of the devil, and do nothing but grieve the Holy Spirit with all their deeds, and thus fall into mortal sin, for which it is not lawful to pray. Such other lapses as occur among men are trivial, for return is open and the hope of pardon is left. But when the Holy Spirit is grieved and men refuse to receive the witness and reproof of the Holy Spirit, the disease is desperate and incurable. 64. But how common is this sin today among all classes! Princes, noblemen, inhabitants of city and country, refuse to be reproved; they rather reprove and sit in judgment upon the Holy Spirit in his servants. They judge of the office of the ministry by the lowliness of the person. They reason thus: This minister is poor and despised; why then should he reprove me, a prince, a nobleman, a magistrate? Rather than endure this, they trample under foot the ministers, together with their office and their message. Should we not, then, fear the judgment of God, such as he here announces to the old world? 65. These, therefore, are the words of a father who disinherits his son, or of a severe schoolmaster in wrath ejecting a pupil, when God simply fixes a hundred and twenty years as the time in which opportunity is granted for repentance. He threatens, should it not be improved, his Spirit shall no longer reprove and strive. This word pertains properly to the office of the ministry and, in a certain sense, describes it. For every preacher or servant of the Word is a man of strife and judgment, and is constrained, by reason of his office, to chide whatever is vicious, without considering the person or office of his hearer. When Jeremiah does this zealously, he incurs not only hate but also the gravest dangers. He is moved even to impatience, so that he wishes he had never been born, Jer 20, 14. 66. And if I had not been particularly strengthened by God, I should have been wearied and broken down ere this by the contumacy of an impenitent world; for the ungodly so grieve the Holy Spirit in us, that, with Jeremiah, we wish often we had never made a beginning of anything. Hence I often pray to God to let the present generation die with us, because, after our death, the most perilous times are to come.