A deity is like God except deities are generally believed in by other people, who have a God-shaped-hole in thier lives, and who have yet to rightiously cram God into that oraphice. All dieties are false except God (and Christ (and the Holy Spirit)). The only thing that all dieties have in common with God is that they should never be angered. A good example of a deity is the deity of the bear religion Bearism, which is presently believed to be Ursa. This allows the bears to fill thier God-shaped-holes without accepting the one true deity God(Jesus (The Holy Spirit)). This is why bears are Godless Killing Machines!! The one thing all deities have in common is that they are worshiped exclusively by non-believers or infidels. Most deities demand near fanatical devotion and a willingness to sacrifice ones wealth and ones life in exchange for proported protection from evil, and claiming to create all the good and wonderful things that happen in the world. This is a stark contrast to God who asks only near fanatical devotion and a willingness to sacrifice ones wealth and ones life in exchange for actual protection from evil, actually creating all that is good and wonderful in the world, and you not going to hell.