An Attempt at a Critique of All Revelation (German: Versuch einer Critik[1] aller Offenbarung; 1792) was the first published work by Johann Gottlieb Fichte.
Fichte went to visit Immanuel Kant on 4 July 1791 and his first interview did not go well[vague], so he wrote An Attempt at a Critique of All Revelation in order to impress him.
An impressed Kant then asked his publisher to print it.
[2] It was briefly mistaken by the public to be a fourth Critique by Kant, as the work was initially published with no author or preface.
[2] In this work, Fichte argued that any revelation in relation to God must be consistent with morality, which was against many aspects of orthodox Christian belief at the time.