Our former teacher, the Law, taught us of our sinfulness, God’s righteousness, and our need of a Savior. (Gal 3:24,25)
Our new teacher, God’s grace, teaches us and empowers us to deny ungodliness, worldliness, and to be zealous of good works. (Titus 2:11,12)
The first was outside of us showing us the wickedness within us.
The second is inside of us giving power to overcome within and without.