Romans 3:20

Romans 3:20. Therefore by the deeds of the law there shall no flesh be justified in his sight:

Talk not, therefore, of righteousness by your own works. Dream not of meriting eternal life by any attempt to keep the law; for this is the declaration of God’s Holy Spirit, "By the deeds of the law there shall no flesh be justified in his sight: "

Romans 3:20. For by the law is the knowledge of sin.

The law is a looking-glass; you see your spots as you gaze into it. But no man ever washed his face in a looking-glass; it shows the spots, but it cannot remove them. The law is the indicator and the revealer of sin; but it has no power whatever to put away sin.