The biblical verse “Male and female he created them” is usually taken to mean that humans are created either male of female, and so to justify all that is contained and implied by the binary understanding of sex and gender. However, the simple binary division of biological sex is shown by the modern understanding of intersex conditions to be simplistic. (See for example) Susannah Cornwall’s presentation for this conference).
In another workshop, Rev Sharon Ferguson showed that the standard interpretation of the words may be not the only one. The binary division is even less universally applicable to gender, than it is to biological sex.