Genesis never names the serpent as Satan. He was merely the most cunning creature God had made. The fruit of the tree gave the eater the knowledge of the opposites. Life-death, good-evil, naked-clothed, and so forth. Apparently the serpent already knew all this. In Genesis the serpent is nothing more than a plot device. If taken literally the serpent was god himself or least a creature created expressly to set up Adam and Eve for a fall. Our fall from grace was a preordained con-job. A way to put the blame for this fucked-up existence on man rather than God.
Wrong. Atheists are usually wrong.
It's made clear in Revelation who the serpent was.
"And
tthe great dragon was thrown down, that ancient serpent, who is called the devil and Satan, the deceiver of the whole world — he was thrown down to the earth, and his angels were thrown down with him." Revelation 12:9
"And he seized the dragon, that ancient serpent, who is the devil and Satan, and bound him for a thousand years" Revelation 20:2
This is evidence for Satan as he wants to hide and he has pulled the wool over your eyes.