There is no way that we by ourselves can generate sanctification. Our sanctification is Christ. There is no way we can be good. Our goodness is Christ. There is no way we can be holy. Our holiness is Christ.
In nature, we see God, as it were, like the sun in a picture; in the law, as the sun in a cloud; in Christ we see Him in His beams; He being “the brightness of His glory, and the exact image of His person.”