This comes out in verse 2 where it says that "the sons of God saw the daughters of men, that they were beautiful, and they took wives for themselves of all whom they chose."
Ombiibeli oya popya shi na sha nefimbo laNoa ya ti: "Ovana ovamati vaKalunga va mona ovana oukadona vovanhu va li vawa, ndele vo ve likufila ovakainhu aveshe ava va hala."