Chapter 21 [VIII.]— The Same Continued
It is not nature, therefore, which, sold as it is under sin and wounded by the offense, longs for a Redeemer and Saviour; nor is it the knowledge of the law— through which comes the discovery, not the expulsion, of sin— which delivers us from the body of this death; but it is the Lord's good grace through our Lord Jesus Christ.
Source: On the Proceedings of Pelagius (New Advent)