“I am aware that the Scripture of Enoch, which has assigned this order (of action) to angels, is not received by some, because it is not admitted into the Jewish canon either. I suppose they did not think that, having been published before the deluge, it could have safely survived that world-wide calamity, the abolisher of all things. If that is the reason (for rejecting it), let them recall to their memory that Noah, the survivor of the deluge, was the great-grandson of Enoch himself; and he, of course, had heard and remembered, from domestic renown and hereditary tradition, concerning his own great-grandfather’s grace in the sight of God, and concerning all his preachings; since Enoch had given no other charge to Methuselah than that he should hand on the knowledge of them to his posterity. Noah therefore, no doubt, might have succeeded in the trusteeship of (his) preaching; or, had the case been otherwise, he would not have been silent alike concerning the disposition (of things) made by God, his Preserver, and concerning the particular glory of his own house.
Tertullian on the Book of Enoch as Scripture
16