Genesis 6:3 And the Lord said, “My Spirit shall not strive with man forever, for he
is indeed flesh; yet his days shall be one hundred and twenty years.” 4 There were giants on the earth in those days, and also afterward, when the sons of God came in to the daughters of men and they bore
children to them. Those
were the mighty men who
were of old, men of renown.
The text plainly says the children of the fallen angels and human women are the Nephilim. They were endowed with massive size and power. I believe the Greek Legends derive from these guys. Although I am not saying all that the Greek Legends say is accurate.
But it does mention
"AND ALSO AFTWERWARD"...
So what comes also afterward? The text says the Giants, or Nephilim come after. After what? The flood.
Does this mean MORE fallen angels mate with women after the flood? I don't think so. Seems very unlikely, although possible. It appears not ALL the angels that fell with Satan committed this sin that Jude and Peter talk about. But they would have seen the immediate, incredibly harsh judgement, and place where those that did are kept. Tartarus!
The word is used only ONE time in Scripture, and in most translations is usually rendered as "hell". It's unfortunate because this confuses people. Most of the western world think of hell as the lake of fire. That word is Gehenna in the NT.
2 Peter 2:4 New King James Version (NKJV)
4 For if God did not spare the angels who sinned, but cast
them down to hell (TARTARUS) and delivered
them into chains of darkness, to be reserved for judgment;
So what do we know about "Tartarus"? Really not too much. This from Wikipedia of all places:
In
Greek mythology,
Tartarus (
/ˈtɑːrtərəs/;
Ancient Greek: Τάρταρος,
Tártaros)
[1] is the deep abyss that is used as a dungeon of torment and suffering for the wicked and as the prison for the
Titans. Tartarus is the place where, according to
Plato's
Gorgias (c. 400 BC),
souls are judged after death and where the wicked received divine punishment. Tartarus is also considered to be a primordial force or deity alongside entities such as the
Earth,
Night, and
Time.
This definition is not totally accurate. There is no Biblical proof that any humans went to Tartarus, Tartarus is not Hades/Sheol, but it's does paint an awful picture of where these particular fallen angels currently are.
The point is, the rest of the angels wouldn't want any part of that place.