You shall not revile God, nor curse a ruler of your people. (Exodus 22:28, ESV)
Yet in like manner these people [“these people” refers to false teachers, see verse 4] also, relying on their dreams, defile the flesh, reject authority, and blaspheme the glorious ones. (Jude 1:8, ESV)
…the Lord knows how to rescue the godly from trials, and to keep the unrighteous under punishment until the day of judgment, and especially those [false prophets and teachers, see verse 1] who indulge in the lust of defiling passion and despise authority. Bold and willful, they do not tremble as they blaspheme the glorious ones, whereas angels, though greater in might and power, do not pronounce a blasphemous judgment against them before the Lord. (2 Peter 2:9-11, ESV).
According to both Jude 1:8 and 2 Peter 2:9-11, one of the key signs of a false prophet or false teacher is that they despise and reject authority. The Greek word for authority in both verses refers to political heads of state. The Greek word for "despise" includes thoughts and words of disrespect and contempt. Interestingly, the Greek word for "reject" is a verb that includes pursuing actions of nullification, frustration, and refusal against political leaders. Simply, a sign that a prophet or teacher is false is that they think and speak ill of leaders in government and actively work to nullify or frustrate the actions of the political authority. These verses are not preconditioned in anyway. In fact, the political authority that Peter is writing of in 2 Peter (as well as 1 Peter 2:9-17) is the Roman Emperor Nero, the very emperor who had Peter executed. According to Tacitus, Nero had Christians, “Covered with the skins of beasts, they were torn by dogs and perished, or were nailed to crosses, or were doomed to the flames and burnt, to serve as a nightly illumination, when daylight had expired. Nero offered his gardens for the spectacle … .” Yet, it is in the context of Nero that Peter and Jude are giving God’s instruction to us.