Onedoug, check out Isaiah 14 and Ezekiel 28 for mention of Satan.
Isaiah 14 begins with an address to the king of Babylon; Ezekiel 28 to the prince of Tyre. Both, however, go beyond them to the being who stands behind them and influences them.
The references to Satan are clear, describing his fall from heaven, and his titles-—star of the morning and son of the dawn. (Isaiah 14:12).
Ezekiel 28:12-15 references his presence in the garden of Eden, his perfect beauty and wisdom, his “seal of perfection”, and his previous status as God’s anointed cherub.
I really should have said Torah, where I believe mention of the “serpent” refers to God himself. And any other mention in the Tanach thereof.
I believe that “Satan” - call it what you will - undermines monotheism, and still calls man away from himself as an “excuse” for his own sins.
As I mentioned earlier, while I see many examples of God in the universe, there are NONE for “Satan” before Man begins to abstract him from his own mind.