Galatians 4:2
But is under tutors and governors until the time appointed of the father.
Cross-reference
Galatians 4:7
Parallel
In Galatians 4:7, the result is revealed: no longer a slave but a son and heir — the transition from guardianship to full sonship.
Galatians 3:24
Parallel
In Galatians 3:24, the same 'guardian' metaphor shows the law served as our tutor until Christ, paralleling the heir's guardians until the appointed time.