7:15 I do not that good which I will, etc: The apostle here describes the disorderly motions of passion and concupiscence; which oftentimes in us get the start of reason: and by means of which even good men suffer in the inferior appetite what their will abhors: and are much hindered in the accomplishment of the desires of their spirit and mind. But these evil motions, (though they are called the law of sin, because they come from original sin, and violently tempt and incline to sin,) as long as the will does not consent to them, are not sins, because they are not voluntary.