Before faith came we were under the school of the Law, but now there is a graduation, because we now live by faith. That is, a graduation from Law school to Faith school.
Now before the faith came, we were perpetually guarded under the law. Kept in custody in preparation for the faith that was destined to be revealed (unveiled, disclosed). So that the law served (to us Jews) as our trainer (our guardian, our guide to Christ, to lead us) until Christ (came), that we might be justified (declared righteous, put in right standing with God) by and through faith but now that the faith has come, we are no longer under a trainer (the guardian of our childhood); Gal 3:23-25, Amp.
Are you a graduate of Law school?