Thematic Bible: Speaking evil of, forbidden

Despite that, in the same way also these [men], [because of their] dreams, defile the flesh and reject authority and blaspheme majestic beings. But Michael the archangel, when he argued with the devil, disputing concerning the body of Moses, did not dare to pronounce a blasphemous judgment, but said, "The Lord rebuke you!" But these persons blaspheme all that they do not understand, and all that they understand by instinct like the irrational animals, by these [things] they are being destroyed.