Wherefore the law was our schoolmaster to bring us unto Christ, that we might be justified by faith.
But after that faith is come, we are no longer under a schoolmaster.

COMMENTARY

Wherefore the law was our schoolmaster to bring us unto Christ
Before we can have the correct attitude towards the commandments, we have to be able to acknowledge that we have flaws and that our behavior needs to change. It is all-too-easy to fall into justifying ourselves, stating that our strengths are sufficient and that our failings are only minor. So long as this is our position, then the commandments will feel like a personal attack, asking for changes that we insist we have no need of. We will become defensive, or even hostile.
Good cannot teach us anything if we “already know everything.”
But if we can be humble and admit that there are changes that need to happen in our lives, then we are open to being taught by a schoolmaster. Now we are teachable.