“In accord with the ecstatic and negative theology, by means of which God is praised in a way beyond expression and by being silent because of the amazement and wonder induced by His majesty, so that now the worshiper feels that not only every word is less than His praise, but also that every thought is inferior to His praise. This is the true Cabala, which is extremely rare. For as the affirmative way concerning God is imperfect, both in understanding and in speaking, so the negative way is altogether perfect. … Therefore our theologians are too rash when they argue and make assertions so boldly about matters divine. For, as I have said, the affirmative theology is like milk to wine in relation to the negative theology. This cannot be treated in a disputation and with much speaking, but must be done in the supreme repose of the mind and in silence, as in rapture and ecstasy. This is what makes a true theologian. But no university crowns anyone like this, only the Holy Spirit. And whoever has seen this, sees how all affirmative theology knows nothing. But this matter perhaps experiences more things than modesty.”

Luther, Martin. On Psalm 65:1. In “First Lectures on Psalms, I” Luther’s Works, American edition. Volume 10. St. Louis: Concordia, 1974, p. 313. [lectures delivered in 1513-1515]