I.The gods and the wolf

Afterwards, to make all still more secure, they tied the end of the chain, which came through the rock to a great stone called Keviti, which they sank still deeper. The wolf used his utmost power to free himself, and, opening his mouth, tried to bite them. When the gods saw that they took a sword and thrust it into his mouth, so that it entered his under jaw right up to the hilt, and the point reached his palate. He howled in the most terrible manner, and since then the foam has poured from his mouth in such abundance that it forms the river called Von. So the wolf must remain until Ragnarök.

Such a wicked race has Loki begot. The gods would not put the wolf to death because they respected the sanctity of the place, which forbade blood being shed there.