There are some lazy pastors and preachers, who are no good themselves, those who count on getting their sermons from … other [people’s] … books. They do not pray, do not study, do not read, do not meditate on anything in Scripture, just as if on account of [these books] one did not have to read the Bible. They avail themselves of books such as the Formulary and the Calendar to earn their annual keep. And they are nothing but parrots or jackdaws that learn to repeat without understanding. — Martin Luther
Amen and amen.