James 1; 13-15 says, "but each one is tempted when, by his own evil desire, he is dragged away and enticed. Then, after desire has conceived, gives birth to sin, and sin when it is full grown, gives birth to death." According to this passage, evil desires are only precursors to sin. Then Jesus said, 'whoever looks at a woman lustfully, he has already committed adultery with her in his heart. If your right eye causes you to sin, gouge it out and throw it away..." Here, he said CAUSES you to sin which means that evil desires lead to sin rather than that they are sin. He is showing us that even if your actions are perfect, our hearts are not which is why we need Him. We do need him in order to change our hearts, but are our desires sin?