1Again, on the day when God’s sons came to present themselves before Yahweh, Satan came also among them to present himself before Yahweh. 2Yahweh said to Satan, “Where have you come from?”
Satan answered Yahweh, and said, “From going back and forth in the earth, and from walking up and down in it.”
3Yahweh said to Satan, “Have you considered my servant Job? For there is no one like him in the earth, a blameless and an upright man, one who fears God, and turns away from evil. He still maintains his integrity, although you incited me against him, to ruin him without cause.”
4Satan answered Yahweh, and said, “Skin for skin. Yes, all that a man has he will give for his life. 5But stretch out your hand now, and touch his bone and his flesh, and he will renounce you to your face.”
6Yahweh said to Satan, “Behold, he is in your hand. Only spare his life.”
7So Satan went out from the presence of Yahweh, and struck Job with painful sores from the sole of his foot to his head. 8He took for himself a potsherd to scrape himself with, and he sat among the ashes. 9Then his wife said to him, “Do you still maintain your integrity? Renounce God, and die.”
10But he said to her, “You speak as one of the foolish women would speak. What? Shall we receive good at the hand of God, and shall we not receive evil?”
In all this Job didn’t sin with his lips. 11Now when Job’s three friends heard of all this evil that had come on him, they each came from his own place: Eliphaz the Temanite, Bildad the Shuhite, and Zophar the Naamathite; and they made an appointment together to come to sympathize with him and to comfort him. 12When they lifted up their eyes from a distance, and didn’t recognize him, they raised their voices, and wept; and they each tore his robe, and sprinkled dust on their heads toward the sky. 13So they sat down with him on the ground seven days and seven nights, and no one spoke a word to him, for they saw that his grief was very great.
"The oldest, and likely the most widely held, interpretation is that the “sons of God” are fallen angels (demons). This was the interpretation most favored in ancient Judaism and the early church (cf. 1 Pet. 3:19, 20; 2 Pet. 2:4; Jude 6). The phrase “sons of God” is clearly used elsewhere of angelic hosts in God’s heavenly court (cf. Job 1:6; 2:1; 38:7). Moreover, the narrator seems to contrast “man” and “the daughters of man” with the “sons of God” in Genesis 6:1, 2."
"This position is not without difficulties, however, the most substantial of which is the idea of fallen angels having physical relations with women. Scripture gives instances of angels engaging in human activities such as eating (Gen. 18:1, 2, 8; 19:1, 5), but surely sexual intercourse is a step beyond! Jesus makes a similar point in Matthew 22:30: “For in the resurrection they neither marry nor are given in marriage, but are like angels in heaven.” William F. Cook, Who Are the Sons of God in Genesis 6? Some of these church fathers were Justin Martyr, Eusebius, Clement of Alexandria, Origen, and Commodianus. Douglas et al. 2011, p. 1384
Most early church fathers in the first three centuries believed that the sons of God were angels who had unnatural sex with women and bore children. This perspective changed with St. Augustine of Hippo, who argued in the City of God that the sons of God were descendants of Seth.
The argument that Jesus taught that angels in heaven did not marry has no impact on the Genesis 6 passage since the angels in Gen 6, as accepted by Jude and Peter, were not unfallen angels in heaven but evil angels who were part of the fallen angels, or unfallen angels involved in human activity before the flood, who also fell. The ability to have sex and bear children appears to be a major argument against the "angel" view, but one must remember that angels in Gen 18 came in human form, along with Yahweh, ate food and drank, and had their feet washed. Moreover, in the New Testament, angels always appear in a male human form." See my article, Will We Eat and Drink in the Coming Kingdom of God? An Interpretation with Origen, Cerinthus, the Church Fathers, and the Literal Interpretation of the Scriptures on the Nature of the Millennial Kingdom.
6. And the angels who kept not their first estate but left their own habitation, he hath reserved in everlasting chains under darkness the judgment of the great day.
The strongest text that associates the sons of God in Genesis 6:1-4 is the Book of Enoch (6:11), referenced by the writer Jude in 1:6: "When the son of men had multiplied, in those days, beautiful and comely daughters were born to them. 2/ And the watchers, the sons of heaven, saw them and desired them. And they said to one another, "Come, let us choose for ourselves wives from the daughters of men, and let us beget children for ourselves."[1]
The ancients had many traditions of deities cast out from heaven. See notes on Genesis xi. 8. Jove, deceived by the goddess Ate, is represented by Homer as having cast her forth, forbidding her return to Olympus with an oath.
"From his ambrosial head, where perch'd she sat,
He snatched the fiery goddess of debate,
The dread, the irrevocable oath he swore,
The immortal seats should ne'er behold her more;
And whirl'd her headlong down, for ever driven
From bright Olympus and the starry heaven." Il 1. xix. v. 126
Jove declares that any deity who interferes in the strife between the Greeks and
Trojans—
"Far, oh far, from steep Olympus thrown,
Low in the dark Tartarean gulph shall groan,
With burning chains fixed to the brazen floors,
And lock'd by Hell's inexorable doors.''-Hom. ll, 1. xix v. v.3.
" With enduring chains
He bound Prometheus, train'd in shifting wiles,
With galling shackles fixing him aloft."-Hes. Theog. v. 521.
[1] George W. E. Nickelsburg and James C. VanderKam, 1 Enoch: A New Translation (Minneapolis: Fortress Press), p. 23.