The curse of lycanthropy was also considered by some scholars as being a divine punishment.
Werewolf literature shows many examples of God or saints allegedly cursing those who invoked their wrath with werewolfism. St. Patrick transformed Vereticus, a king in Wales, into a wolf; and St. Natalis cursed an illustrious Irish family with the result that each member of it was doomed to be a wolf for seven years.
In other tales the divine agency is even more direct, while in Russia, again, men supposedly became werewolves when incurring the wrath of the Devil. Those who were excommunicated by the Roman Catholic Church were also said to become werewolves.
The power of transforming others into wild beasts was attributed not only to malignant sorcerers, but to Christian saints as well.
Omnes angeli, boni et Mali, ex virtute naturali habent potestatem transmutandi corpora nostra ("All angels, good and bad have the power of transmutating our bodies") was the dictum of St. Thomas Aquinas.
How to become a werewolf