Greek God

The Greek Gods were angels appointed by God to have free will, unlike other angels. They were a whole new breed of angels. They were allowed by God to let the people think they were gods, God wanting to see how mankind would look at these 'gods' to see how they would truly look at him.

God knew that later on Christianity would be brought into the minds of the human race and that they would know the one true God.

God allowed these Angels to possess different powers. He had Zeus, Poseidon, and Hades to prove to him which was worthy of being the leader of these Angels, Zeus coming on top. He allowed them to each have powers over a certain domain. But, Hades had so much hate in him after this that God appointed him as God of the Underworld.

Unlike other Angels, they were allowed to have children. They could not have contact with them and if they did there would have to be a very good reason for this.

After Christianity rose as the main religion, the gods were then sent to Earth to live amongst the human race and help the world with it's problems. They still possessed their powers and they did age. They aged like normal humans and would die like humans.

However, when each of them lay dying God came to them, telling them that they will be born into human bodies at one time and they would be allowed to live their lives once again, using their powers to help the world. They wouldn't be able to remember who they were in their past but would still have the urge to use their powers for good.