This is the reason that a man leaves his father and mother and embraces his wife, and they become one flesh.
It’s cited widely elsewhere in the Bible – in all three of the synoptic gospel’s portrayals of Jesus’ divorce teachings, in 1 Corinthians 6 and in Ephesians 5. And it’s lately become the crux in what I call the template argument, in which this verse provides the proof that God designed marriage to be between one man and one woman.
This verse came back to my attention while reading the short – though quite dense – book The Septuagint, Sexuality and the New Testament by William Loader, professor of New Testament at Murdoch University in Perth, Australia. Loader is looking for ways in which the Septuagint translators changed the Hebrew text of certain Old Testament passages dealing with sexuality, and how those changes influenced the arguments of Greco-Roman Jews relying on the Septuagint, particularly Philo of Alexandria and Paul of Tarsus.