But what is the source of temptation? What can tempt someone to do something they know to be wrong, and knowing that they will bitterly regret it afterwoods, yet they still go ahead and do it?
I will explain it to you, Alan, and hope you understand it.
Evolution first of all began with the self first instinct. Primitive organisms simply took what they wanted from the environment to live and multiply. There was no need to care about anything else.
Then came the advent of social species, when the instinct to protect the group overrode the primitive self first instinct,
but didn't eradicate it. Because of the diversity of genetic combinations, it follows that all the members of one social species had a differing balance of the two instincts, ranging from totally selfish at one extreme to totally altruistic at the other, with the majority somewhere in between.
Humans, being a social species, are exactly the same, and it is those at the very selfish end of the range that you think the "Devil" is tempting, whereas in fact they are doing nothing more than responding to their genetic makeup.
Can you understand that?