Clement of Alexandria, on Jude 1:6

“And the angels who kept not their principality, but forsook their own habitation, he hath reserved under darkness in everlasting chains, unto the judgment of the great day.”

“"But the angels," he says, "that kept not their own pre-eminence," that, namely, which they received through advancement, "but left their own habitation," meaning, that is, the heaven and the stars, became, and are called apostates. "He hath reserved these to the judgment of the great day, in chains, under darkness." He means the place near the earth, that is, the dark air. Now he called "chains" the loss of the honour in which they had stood, and the lust of feeble things; since, bound by their own lust, they cannot be converted. "As Sodom and Gomorrha," he says.”

Imported from an open dataset — not yet checked against the printed edition.