Genesis 6:2-3 that the sons of God having seen the daughters of men that they were beautiful, took to themselves wives of all whom they chose.

LXX2012⁽ⁱ⁾ ² that the sons of God having seen the daughters of men that they were beautiful, took to themselves wives of all whom they chose. ³ And the Lord God said, My Spirit shall certainly not remain among these men for ever, because they are flesh, but their days shall be an hundred and twenty years.