" The appropriate mission of the minister is to preach the gospel for the salvation of souls. The servant who by diverging into some other project not especially enjoined on him, nor essential for him to perform, precludes himself from his allotted task, is clearly guilty of disobedience to his master, if not of treason to his charge. "

― Robert Lewis Dabney , Evangelical Eloquence: A Course of Lectures on Preaching