I am posting again, to show more proof, rather than just taking my word for 'sons of God' being reference to Angels, and not Man, i dove into the text, and original context via a hebrew strongs concordance and lexicon.
[bible]2 That the sons [anchor="H1121"]H1121[/anchor] of God [anchor="H430"]H430[/anchor]saw H7200 H8799 the daughters [anchor="H1323"]H1323[/anchor] of men [anchor="H120"]H120 [/anchor]that they H2007 were fair H2896; and they took H3947 H8799 them wives [anchor="H802"]H802 [/anchor]of all which they chose H977 H8804.
3 And GOD [anchor="H3068"]H3068 [/anchor]said H559 H8799, My spirit H7307 shall not always H5769 strive H1777 H8799 with man H120, for that he also H1571 is flesh H1320 H7683 H8800: yet his days H3117 shall be an hundred H3967 and twenty H6242 years H8141.
4 There were giants [anchor="H5303"]H5303 [/anchor]in the earth H776 in those days H3117; and also after H310 that H3651, when H834 the sons H1121 of God H430 came in H935 H8799 unto the daughters H1323 of men H120, and they bare H3205 H8804 children to them, the same H1992 became mighty men H1368 which were of old [anchor="H5769"]H5769, [/anchor]men H582 of renown [anchor="H8034"]H8034[/anchor].[/bible]
Sorry for the confussing numbers, these are all links to my strongs, the ones in bold are the ones we will be looking at. I will go in order as they appear in the text above.
[anchor="H1121"]H1121[/anchor] (sons) - Word: OA
Pronounc: bane
Use: Noun Masculine
1) son, grandson, child, member of a group
1a) son, male child
1b) grandson
1c) children (pl. - male and female)
1d) youth, young men (pl.)
1e) young (of animals)
1f) sons (as characterisation, i.e. sons of injustice [for un- righteous men] or sons of God [for angels] )
1g) people (of a nation) (pl.)
1h) of lifeless things, i.e. sparks, stars, arrows (fig.)
1i) a member of a guild, order, class
[anchor="H430"]H430 [/anchor](God) - Word: MIDL@
Pronounc: el-o-heem'
Use: Noun Masculine
1) (plural)
1a) rulers, judges
1b) divine ones
1c) angels
1d) gods
2) (plural intensive-singular meaning)
2a) god, goddess
2b) godlike one
2c) works or special possessions of God
2d) the (true) God
2e) God
[anchor="H1323"]H1323 [/anchor](daughters) - Word: ZA
Pronounc: bath
1) daughter
1a) daughter, girl, adopted daughter, daughter-in-law, sister, granddaughters, female child, cousin
1a1) as polite address
1a2) as designation of women of a particular place
2) young women, women
1a3) as personification
1a4) daughter-villages
1a5) description of character
[anchor="H120"]H120 [/anchor](men) - Word: MC@
Pronounc: aw-dawm'
Use: Noun Masculine
1) man, mankind
1a) man, human being
1b) man, mankind (much more frequently intended sense in OT)
1c) Adam, first man
1d) city in Jordan valley
[anchor="H802"]H802 [/anchor](wives) - Word: DY@
Pronounc: ish-shaw'
Use: Noun Feminine
1) woman, wife, female
1a) woman (opposite of man)
1b) wife (woman married to a man)
1c) female (of animals)
1d) each, every (pronoun)
[anchor="H3068"]H3068 [/anchor](GOD / LORD) - Word: DEDI
Pronounc: yeh-ho-vaw'
Use: Proper Name
Jehovah = "the existing One"
1) the proper name of the one true God
1a) unpronounced except with the vowel pointings of ad-o-noy' - Lord-title, spoken in place of Yahweh in Jewish display of reverence
[anchor="H5303"]H5303 [/anchor](giants) - Word: LITP
Pronounc: nef-eel'
Use: Noun Masculine
1) giants, the Nephilim
[anchor="H5769"]H5769 [/anchor](old) - Word: MLER
Pronounc: o-lawm'
Use: Noun Masculine
1) long duration, antiquity, futurity, for ever, ever, everlasting, evermore, perpetual, old, ancient, world
1a) ancient time, long time (of past)
1b) (of future)
1b1) for ever, always
1b2) continuous existence, perpetual
1b3) everlasting, indefinite or unending future, eternity
[anchor="H8034"]H8034 [/anchor](renoun) - Word: MY
Pronounc: shame
Use: Noun Masculine
1) name
1a) name
1b) reputation, fame, glory
1c) the Name (as designation of God)
1d) memorial, monument
So, when you research the text, you can plainly see that this is in reffrence to Angels, as in the phrase 'sons of God' el-o-heem' is used as the word God, whereas any other time when GOD is refered to it is used yeh-ho-vaw' or ad-o-noy'
Iteresting fact - yeh-ho-vaw' is the pronuciation of each syllable of the word for the Name of GOD, as it was believed you could never say the name of GOD, or the Hebrew word YHWH. (which by the way, no one knows the true pronuciation for)