One thing, and only one thing, is necessary for Christian life, righteousness, and freedom. That one thing is the most holy Word of God, the gospel of Christ.
Martin LutherGod foreknows nothing by contingency, but that He foresees, purposes, and does all things according to His immutable, eternal, and infallible will. By this thunderbolt, "Free-will" is thrown prostrate, and utterly dashed to pieces.
Martin LutherGrace remits sin, and peace quiets the conscience. Sin and conscience torment us, but Christ has overcome these fiends now and forever.
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