At the Diet of Worms in April 1521, Martin Luther was asked to recant. He refused unless he was overcome durch Zeugnisse der Heiligen Schrift oder klare Vernunftgründe, by the testimony of Scripture or by clear reasons. He named the test that could change his mind.
The famous sentence Hier stehe ich, ich kann nicht anders, here I stand, I can do no other, was not spoken at Worms in these words. It comes from a printed pamphlet version of the speech, which reads Ich kann nicht anderst, hie stehe ich. Gott helf mir! Amen.