6. And the angels. This is an argument from the greater to the less; for the state of angels is higher than ours; and yet God punished their defection in a dreadful manner. He will not then forgive our perfidy, if we depart from the grace unto which he has called us. This punishment, inflicted on the inhabitants of heaven, and on such superior ministers of God, ought surely to be constantly before our eyes, so that we may at no time be led to despise God’s grace, and thus rush headlong into destruction.
The word ἀρχὴ in this place, may be aptly taken for beginning as well as for principality or dominion. For Jude intimates that they suffered punishment, because they had despised the goodness of God and deserted their first vocation. And there follows immediately an explanation, for he says that they had left their own habitation; for, like military deserters, they left the station in which they had been placed.
We must also notice the atrocity of the punishment which the Apostle mentions. They are not only free spirits but celestial powers; they are now held bound by perpetual chains. They not only enjoyed the glorious light of God, but his brightness shone forth in them, so that from them, as by rays, it spread over all parts of the universe; now they are sunk in darkness. But we are not to imagine a certain place in which the devils are shut up, for the Apostle simply intended to teach us how miserable their condition is, since the time they apostatized and lost their dignity. For wherever they go, they drag with them their own chains, and remain involved in darkness. Their extreme punishment is in the meantime, deferred until the great day comes.