Martin Luther said and wrote many heretical things, but here are a mere five quotes, along with Biblical passages that disprove them.

1. “For reason is directly opposed to faith. This is why you must let reason go. It must be killed and buried in believers.” [1]

(Answer: Proverbs 14:15, Colossians 1:9, Colossians 4:5-6, 1 Thessalonians 5:19-22)

2. “..[A Christian] could not lose his salvation, however much he sinned, unless he refused to believe. For no sin can condemn him save unbelief alone.” [2]

(Answer: Hebrews 10:26-27)

3. “Be a sinner, and let your sins be strong, but let your trust in Christ be stronger, and rejoice in Christ who is the victor over sin, death, and the world. We will commit sins while we are here, for this life is not a place where justice resides. …No sin can separate us from Him, even if we were to kill or commit adultery thousands of times each day.” [3]

(Answer: Psalm 4:4, Matthew 5:48, Hebrews 10:26-27)

4. “It is good that we have such a man [Jesus Christ], because God in himself is cruel and bad.” [4]

(Answer: Psalm 51:1, Jeremiah 9:24, Jeremiah 31:3)

5. “I miss more than one thing in this book [Revelation, aka Apocalypse], and this makes me hold it to be neither apostolic nor prophetic…and [I] can nohow detect that the Holy Spirit produced it. …My spirit cannot fit itself into this book.” [5]

(Answer: Revelation 22:19)

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References:

1. Luther’s Sermon on Matthew 19:13-15. “What Luther Says,” 1:485-486 (entry 1440). [link]

2. [link 1, link 2]

3. Let Your Sins Be Strong: A Letter From Luther to Melanchthon. Translated by Erika Bullmann Flores. [link]

4. [link 1, link 2]

5. M. Reu, Luther’s German Bible: An Historical Presentation Together with a collection of Sources (Ohio: The Lutheran Book Concern, 1934) 174-175 [link]