This is the advice: Keep watch! Study! Attende lectioni (“Attend to reading” 1 Timothy 4:13)! Truly, you cannot read in Scripture too much; and what you do read you cannot read too well, and what you read well 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. Experto crede Ruperto (“Take it from Rupert, who knows from experience.”). It is the devil, the world, and the flesh that are ranting and raging against us. Therefore, beloved lords and brothers, pastors and preachers, pray, read, study, and keep busy. Truly, at this evil, shameful time is not the season for loafing, snoring, or sleeping.
– Martin Luther, Preface to Johann Spangenberg’s Postils. Erlangen Edition 63:372-373. St. Louis Edition 14:397-398. Now found in The Christian Year of Grace, translated by Mr. Matthew Carver, p. 6. English Translation of the above quote from Mickey L. Mattox.