I raised the question in another thread about the first cause of sin, but so far have seemingly hit a snag. Let me ask the question in a thread designated only for this important question. We know that every effect has a cause, and sin is an effect. The question concerns who or what is the cause. Who or what is the first cause of sin? Is it God, being the Eternal First cause, the rightful cause of sin, or is it man or other sentient beings such as fallen angels, or something else the cause of sin?