Nephilim

Literature and art are replete with images of angels descending to earth and joining humanity. One source for this image is a terse account in Genesis describing fallen angels, which is expanded upon in Second Temple literature. This interpretive tradition is suppressed in the classic rabbinic literature only to resurface again in the late narrative midrash, Pirqe de-Rabbi Eliezer.

Genesis 6 presents a narrative about divine beings who come to earth and have offspring with humans. What is a story which sounds like a pagan myth doing in the Torah?