13 I saw in the visions of my head upon my bed, and, behold, a watcher and an holy one came down from heaven;
14 He cried aloud, and said thus, Hew down the tree, and cut off his branches, shake off his leaves, and scatter his fruit: let the beasts get away from under it, and the fowls from his branches:
15 Nevertheless leave the stump of his roots in the earth, even with a band of iron and brass, in the tender grass of the field; and let it be wet with the dew of heaven, and let his portion be with the beasts in the grass of the earth:
I always thought that God gave Nebuchadnezzer a vision of the severe mental illness that he was going to receive because he would not repent/end his sinfullness. Nebuchadnezzer did not repent and the vision was fulfilled. He began to believe that he was a beast in the grass (ox/cow).
Daniel 4 (33)
The same hour was the thing fulfilled upon Nebuchadnezzar: and he was driven from men, and did eat grass as oxen, and his body was wet with the dew of heaven, till his hairs were grown like eagles' feathers, and his nails like birds' claws.
Maybe the werewolf assoc. started because of the word "claws"?