To Joseph Levin Metzsch. Aug. 26, 1529.
Grace and peace in Christ, saint, friend, dear Lord and friend! I answer the priest's question as stated in my letter to him. Although no one can be forced to believe, they should not be allowed to blaspheme the doctrine, but should state their reason and hear the objection. Let them then stand, good; if not, let them keep their mouths shut and believe in themselves what they will. This is what they did in Nuremberg and what we did in Wittenberg.
For if one can do it, one should not tolerate in the same authority a cunning doctrine, in order to avoid further harm. And though they believe not, yet for the ten commandments' sake they shall be driven to preaching, that they may at least learn outward works of obedience. Further, your pastor will announce to you. Hereby commanded by God.
The 26th of August, Anno 1529.
Martinus Luther.