If you really want the answer read zechariah Sitchin.
And Peter Tellinger Slave species of God. And the Gods of Eden by William Bramley.
These are based on the Sumerian text which the bible is based on.
But the bible has an agenda which these works will reveal.
We are slaves of the Gods to do their work, fight their wars and make their profits.
If you are smart enough, you can fall out of line and watch the others fall in line.