CODEX Entry 1510: Temple Worship
Sunday derives in English from Sunnandæg which means “Sun’s day”. This was the day allocated for worship of the Gods of the Sun, or Molech. Molech worship was practised throughout the region by Phoenicians, Canaanites, Babylonians, Sumerians, Ammonites, and related cultures in North Africa and the Levant. Preparations for temple day would begin on Friday. Saturday, or Sabbatu, throughout Canaan, Egypt, and Babylon, was not just a day of rest for the Jews. This was the practise of the entire populace¹. No work was done, and sex or masturbation were forbidden. Kavod Shabbat, or Friday, was a day for shaving, haircuts, and preparing clean clothes to go to temple. The male members of the family would eat meat only three times in the week, Friday evening, Saturday lunch, and Saturday evening. Apart from the priestesses, only men of fighting age were allowed in temple.
Reference:
¹ J.T.Nichols, Origins of the Sabbath