"The assumption that is made in the mythological interpretation of Genesis 6 is that the phrase "sons of god" refer to angelic beings. We notice that the Old Testament does not say explicitly that there was sexual intercourse between angels and human women; does not say that it talks about the intercourse between the sons of god and the daughters of men. And those two phrases are the phrases that are used in the text. Now, why would somebody assume then that this involved the marriage or interaction between angels and human women?"