Quod Deus Sit Immutabilis
Philo Judaeus
The works of Philo Judaeus, the contemporary of Josephus, volume 1. Yonge, C. D., translator. London: Henry G. Bohn, 1854.
But perhaps, Moses does not mean here to speak of the alone as corrupting his way upon the earth, so that he deserves to be considered to have erred in the expression which he has used, but rather to speak of the things of the flesh, which is corrupted, and of that other being whose way the flesh endeavours to injure and to corrupt. So that we should explain this expression thus:—All flesh corrupted the perfect way of the everlasting and incorruptible being which conducts to God.
And know that this way is wisdom. For the mind being guided by wisdom, while the road is straight and level and easy, proceeds along it to the end; and the end of this road is the knowledge and understanding of God. But every companion of the flesh hates and repudiates, and endeavours to corrupt this way; for there is no one thing so much at variance with another, as knowledge is at variance with the pleasure of the flesh. Accordingly, the earthly Edom is always fighting with those who wish to proceed by this road,
which is the royal road for those who partake of the faculty of seeing who are called Israel; for the interpretation of the name Edom, is "earthly," and he labours with all earnestness, and by every means in his power, and by threats, to hinder them from this road, and to make it pathless and impracticable for ever.