"Saint Paul said it’s either that or a close shave"

 Saint Paul (Paul of Tarsus) was the self-proclaimed ‘Apostle to the Gentiles’. According to Acts of the Apostles, his conversion to Christianity took place on seeing a blinding light and hearing a divine voice on the road to Damascus.  The reference comes from his first letter to the Corinthians:

If a woman does not cover her head, she should have her hair cut off; and if it is a disgrace for a woman to have her hair cut or shaved off, she should cover her head.

1 Corinthians 11:6

St Paul seemed to view women as second class citizens. But as there are many contextual and syntactical issues inherent in any translation of a Biblical passage, this is not accepted by all scholars.