Christian officers in the Church should show their loyalty to Christ in their capacity as members of the individual congregations. The issue often arises in connection with the choice of a pastor. Such and such a man, it is said, is a brilliant preacher. But what is the content of his preaching? Is his preaching full of the gospel of Christ? The answer is often evasive. The preacher in question, it is said, is of good standing in the Church, and he has never denied the doctrines of grace. Therefore, it is urged, he should be called to the pastorate. But shall we be satisfied with such negative assurances? Shall we be satisfied with preachers who merely “do not deny” the Cross of Christ? God grant that such satisfaction may be broken down! The people are perishing under the ministrations of those who “do not deny” the Cross of Christ. Surely something more than that is needed. God send us ministers who, instead of merely avoiding denial of the Cross shall be on fire with the Cross, whose whole life shall be one burning sacrifice of gratitude for the blessed Saviour who loved them and gave Himself for them! - J. Gresham Machen, Christianity and Liberalism, 175-6.
Some pastors and preachers are lazy and no good. They do not pray; they do not read; they do not search the Scripture … The call is: watch, study attend to reading. In truth you cannot read too much in Scripture; and what you read you cannot read too carefully, and what you read carefully you cannot understand too well, and what you understand well you cannot teach too well, and what you teach well you cannot live too well … The devil … the world … and our flesh are raging and raving against us. Therefore, dear sirs and brothers, pastors and preachers, pray, read, study, be diligent … This evil, shameful time is not the season for being lazy, for sleeping and snoring. - Martin Luther