Romans 3:20

20 Therefore no one will be declared righteous in God’s sight by the works of the law; rather, through the law we become conscious of our sin.

Read Romans 3:20 Using Other Translations

Therefore by the deeds of the law there shall no flesh be justified in his sight: for by the law is the knowledge of sin.
For by works of the law no human being will be justified in his sight, since through the law comes knowledge of sin.
For no one can ever be made right with God by doing what the law commands. The law simply shows us how sinful we are.