The Law versus the Gospel

In his Epistle to the Romans, contrasting the law and the gospel, he says, 'Moses describeth the righteousness which is of the law, that a man which doeth those things shall live by them. But the righteousness which is of faith speaketh on this wise That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.' Do you perceive how be thus discriminates between the law and the gospel,  that the former attributes righteousness to works, but the latter bestows it freely, without the assistance of works? -John Calvin,  The Institutes, 3.11.17. Pg. 669