Friday is the fifth or some say sixth day of the week, the name derives from the Saxon Frige-doeg, the day sacred to Freya. Friday having been the day of the Crucifixion, the Roman Catholic church holds Friday as the weekly fast day. Friday being the day of Adam's creation, the Islam religion holds
Friday as the weekly day of prayer.
In Norse mythology, Balder or Baldur was the son of Odin and Freya and husband of Nanna, and the best, wisest, and most loved of all the gods. His mother took an oath from every creature, and even from every inanimate object, that they would not harm Balder, but omitted the mistletoe. Balder was therefore deemed invulnerable, and the other gods in sport flung stones and shot arrows at him without harming him. But the evil god Loki fashioned an arrow from the mistletoe and got Balder's blind brother Hoder to shoot it, himself guiding his aim. Balder fell dead, pierced to the heart, to the deep grief of all the gods. He is believed to be a personification of the brightness and beneficence of the sun. Research Balder
In Norse mythology, Freya (Freyja) is the goddess of love, fertility, war, and wealth. Originally one of the Vanir. She was the daughter of Njord, and the sister of Frey. She lived in Folkvang and each day chose half of the slain warriors to split with Odin. Research Freya
Odin was chief god of Norse mythology. A sky god, he lived in Asgard, at the top of the world-tree, and from the Valkyries receives the souls of half of the heroic slain warriors, feasting with them in his great hall, Valhalla; the rest are feasted by Freya his wife. Research Odin