The soul can do without everything except the word of God, without which none at all of its wants are provided for.
Martin LutherAlways preach in such a way that if the people listening do not come to hate their sin, they will instead hate you
Martin LutherWhen I am assailed with heavy tribulations, I rush out among my pigs rather than remain alone by myself. The human heart is like a millstone in a mill: when you put wheat under it, it turns and grinds and bruises the wheat to flour; if you put no wheat, it still grinds on, but then 'tis itself it grinds and wears away. So the human heart, unless it be occupied with some employment, leaves space for the devil, who wriggles himself in and brings with him a whole host of evil thoughts, temptations, and tribulations, which grind out the heart.
Martin LutherWe cannot attain to the understanding of Scripture either by study or by the intellect. Your first duty is to begin by prayer. Entreat the Lord to grant you, of His great mercy, the true understanding of His Word. There is no other interpreter of the Word of God than the Author of this Word, as He Himself has said, "They shall be all taught of God" (John 6:45). Hope for nothing from your own labors, from your own understanding: trust solely in God, and in the influence of His Spirit. Believe this on the word of a man who has experience.
Martin Luther