The Origin of sin or evil is not from not knowing God but knowing God and choosing the opposite.
The origin of evil comes from within not from the outside.
13 And remember, when you are being tempted, do not say, “God is tempting me.” God is never tempted to do wrong, and he never tempts anyone else. 14 Temptation comes from our own desires, which entice us and drag us away. 15 These desires give birth to sinful actions. And when sin is allowed to grow, it gives birth to death.