Galatians 4:1

Verse 1. By the child, in this place, the apostle understands all the Jewish people, who, as long as they were under the childhood of the law, were subject to numerous restrictions, although they were the favorite children of God. But when the fulness of time came, they received the adoption of children, and were in possession of the liberty of the law of grace. They were no longer obliged to observe the legal rites. Whence the apostle wishes the conclusion to be drawn, that if persons once subject to the law were now exempt from it, how much more will those be excused from its yoke, who were never under its control. Calmet.