Jude 1:9

⁹But when the archangel Michael, contending with the devil, was disputing about the body of Moses, he did not presume to pronounce a blasphemous judgment, but said, “The Lord rebuke you.”i

Jude 1 is a fiery, urgent letter written to warn believers about false teachers who have crept into the church unnoticed. Jude, the brother of James and half-brother of Jesus, calls his readers to contend for the faith once delivered to the saints. He draws heavily on Old Testament