The Book of Job uses the label "sons of God" with the angels that appeared before God's throne with Satan. Hard to miss that those were angels, and in the heavenly dimension. One would have to intentionally be in denial of that Scripture proof.
And the relation of that label "sons of God" with the saints, Apostle John in 1 John 3:2 revealed he didn't yet know exactly what future state that would be, but that we would be like Jesus when He appears, pointing to the heavenly dimension body, which is about the "spiritual body" Apostle Paul taught that is the resurrection per 1 Corinthians 15:42-54. Thus even women saints are also called "sons of God", because that label refers to the future state of the glorious body.
The Genesis 6:4 verse tells us how a 2nd irruption of the giants happened after... the flood.
Gen 6:4
4 There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown.
KJV
There were giants in Noah's day, and also after Noah's day, when... those angels did what? had sexual relations ("came in unto") with the daughters of Adam (eth'ha'aadam). That is what that verse is saying.
Can a holy God stomach evil in heaven?
"Satan
In the Bible.
Term
used in the Bible with the general connotation of "adversary," being applied (1) to an enemy in war (I Kings v. 18 [A. V. 4]; xi. 14, 23, 25), from which use is developed the concept of a traitor in battle (I Sam. xxix. 4); (2) to an accuser before the judgment-seat (Ps. cix. 6); and (3) to any opponent (II Sam. xix. 23 [A. V. 22]). The word is likewise used to denote an antagonist who puts obstacles in the way, as in Num. xxii. 32, where the angel of God is described as opposing Balaam in the guise of a satan or adversary; so that the concept of Satan as a distinct being was not then known.
Such a view is found, however, in the prologue to the Book of Job, where Satan appears, together with other celestial beings or "sons of God," before the Deity, replying to the inquiry of God as to whence he had come, with the words: "From going to and fro in the earth, and from walking up and down in it" (Job i. 7). Both question and answer, as well as the dialogue which follows, characterize Satan as that member of the divine council who watches over human activity,
but with the evil purpose of searching out men's sins and appearing as their accuser. He is, therefore, the celestial prosecutor, who sees only iniquity; for he persists in his evil opinion of Job even after the man of Uz has passed successfully through his first trial by surrendering to the will of God, whereupon Satan demands another test through physical suffering (ib. ii. 3-5).
Yet it is also evident from the prologue that Satan has no power of independent action, but requires the permission of God, which he may not transgress.He can not be regarded, therefore, as an opponent of the Deity; and the doctrine of monotheism is disturbed by his existence no more than by the presence of other beings before the face of God. This view is also
retained in Zech. iii. 1-2, where Satan is described as the adversary of the high priest Joshua, and of the people of God whose representative the hierarch is; and he there opposes the "angel of the Lord," who bids him be silent in the name of God. In both of these passages Satan is a mere accuser who acts only according to the permission of the Deity; but in I Chron. xxi. 1 he appears as one who is able to provoke David to destroy Israel. The Chronicler (third century B.C.) regards Satan as an independent agent, a view which is the more striking since the source whence he drew his account (II Sam. xxiv. 1) speaks of God Himself as the one who moved David against the children of Israel. Since the older conception refers all events, whether good or bad, to God alone (I Sam. xvi. 14; I Kings xxii. 22; Isa. xlv. 7; etc.), it is possible that the Chronicler, and perhaps even Zechariah, were influenced by Zoroastrianism, even though in the case of the prophet Jewish monism strongly opposed Iranian dualism (Stave, "Einfluss des Parsismus auf das Judenthum," pp. 253 et seq.). An immediate influence of the Babylonian concept of the "accuser, persecutor, and oppressor" (Schrader, "K. A. T." 3d ed., p. 463) is impossible, since traces of such an influence, if it had existed, would have appeared in the earlier portions of the Bible.
In the Apocrypha.
The
evolution of the theory of Satan keeps pace with the development of Jewish angelology and demonology.
In Wisdom ii. 24 he is represented, with reference to Gen. iii., as the author of all evil, who brought death into the world; he is apparently mentioned also in Ecclus. (Sirach) xxi. 27, and the fact that his name does not occur in Daniel is doubtless due merely to chance. Satan was the seducer and the paramour of Eve, and was hurled from heaven together with other angels because of his iniquity (Slavonic Book of Enoch, xxix. 4 et seq.). Since that time he has been called "Satan," although previously he had been termed "Satanel" (ib. xxxi. 3 et seq.).
The doctrine of the fall of Satan, as well as of the fall of the angels, is found also in Babylonia (Schrader, l.c. p. 464), and is mentioned several times in the New Testament. Satan rules over an entire host of angels (Martyrdom of Isaiah, ii. 2; Vita Adæ et Evæ, xvi.). Mastema, who induced God to test Abraham through the sacrifice of Isaac, is identical with Satan in both name and nature (Book of Jubilees, xvii. 18), and the Asmodeus of the Book of Tobit is likewise to be identified with him, especially in view of his licentiousness. As the lord of satans he not infrequently bears the special name Samael. It is difficult to identify Satan in any other passages of the Apocrypha, since the originals in which his name occurred have been lost, and the translations employ various equivalents. An "argumentum a silentio" can not, therefore, be adduced as proof that concepts of Satan were not wide-spread; but it must rather be assumed that reference to him and his realm is implied in the mention of evil spirits of every sort (comp. Demonology, and Kautzsch, "Apokryphen," Index).
In the New Testament.
The high development of the demonology of the New Testament presupposes a long period of evolution. In the Gospels the beliefs of the lower orders of society find expression, and Satan and his kingdom are regarded as encompassing the entire world, and are factors in all the events of daily life. In strict accordance with his manifold activity he bears many names, being called "Satan" (Matt. iv. 10; Mark i. 30, iv. 15; Luke x. 18 et passim), "devil" (Matt. iv. 1 et passim),
"adversary" (I Peter v. 8, ἀντίδικος; I Tim. v. 14, ἀντικείμενος), "enemy" (Matt. xiii. 39), "accuser" (Rev. xii. 10), "old serpent" (ib. xx. 2), "great dragon" (ib. xii. 9), Beelzebub (Matt. x. 25, xii. 24, et passim), and Belial (comp. Samael). The fall of Satan is mentioned in Luke x. 18, John xii. 31, II Cor. vi. 16, and Rev. xii. 9. He is the author of all evil (Luke x. 19 et passim; Acts v. 3; II Cor. xi. 3; Ephes. ii. 2), who beguiled Eve (II Cor. xi. 3; Rev. xii. 9), and who brought death into the world (Heb. ii. 13), being ever the tempter (I Cor. vii. 5; I Thess. iii. 5; I Peter v. 8), even as he tempted Jesus (Matt. iv.). The belief in the devil as here developed dominated subsequent periods, and influenced indirectly the Jews themselves; nor has it been entirely discarded to-day.
Satan and his host are mentioned comparatively seldom in the Talmud and Midrash, although the material on this subject is not without importance. In the older or tannaitic literature the name of Satan is met with but rarely. Thus in Ab. iv. 11 sin itself, and not Satan, is the accuser, the term κατήγωρ becoming a standing epithet of Satan in the New Testament, and being applied to him by the later Talmudic teachers also. In Tosef., Shab. xvii. (xviii.) 3 it is stated that the angels of Satan accompany the blasphemer on his way, according to Ps. cxv. 6, while a comparison of Gen. R. xxxviii. 7 with Sifre, Num. xxv. 1 shows how reference to Satan was introduced by the Amoraim into tannaitic sayings (Bacher, "Ag. Pal. Amor." ii. 254); and in like manner "Satan" is substituted for "angel" in Ned. 32a."
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SATAN - JewishEncyclopedia.com