Galatians 4:1-3

Amplified Bible, Classic Edition

4 Now what I mean is that as long as the inheritor (heir) is a child and under age, he does not differ from a slave, although he is the master of all the estate;

² But he is under guardians and administrators or trustees until the date fixed by his father.

³ So we [Jewish Christians] also, when we were minors, were kept like slaves under [the rules of the Hebrew ritual and subject to] the elementary teachings of a system of external observations and regulations.