創世記6:1-4

6:1 當人在世上多起來、又生女兒的時候，
6:2 上帝的兒子們看見人的女子美貌，就隨意挑選，娶來為妻。
6:3 耶和華說：「人既屬乎血氣，我的靈就不永遠住在他裡面；然而他的日子還可到一百二十年。」
6:4 那時候有偉人在地上，後來上帝的兒子們和人的女子們交合生子；那就是上古英武有名的人。

When human beings began to increase in number on the earth and daughters were born to them, ² the sons of God saw that the daughters of humans were beautiful, and they married any of them they chose. ³ Then the Lord said, “My Spirit will not contend with humans forever, for they are mortal; their days will be a hundred and twenty years.”

⁴ The Nephilim were on the earth in those days—and also afterward—when the sons of God went to the daughters of humans and had children by them. They were the heroes of old, men of renown.

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          「上帝的兒子」是指塞特的子孫，因為要是天使的話，怎麼會有後代呢？

           然而塞特的兒子本該眼目注視於上帝，過敬畏上帝的日子。然而他們竟然被美色所惑，娶了不敬虔的女子為妻，正如經文所說：「上帝的兒子們看見人的女子美貌，就隨意挑選，娶來為妻」。

          也因為如此，人就墮落成「血氣」，也因此上帝說：「人既屬乎血氣，我的靈就不永遠住在他裡面；然而他的日子還可到一百二十年。」

          雖然他們是生出的孩子是「偉人」，是很優秀的後代，卻不蒙上帝所喜悅，以致於後來上帝用洪水毀滅世界！