Therefore the law would have fulfilled its primary function once the promised Seed came to fulfill it (Matthew 5:17). It was foolish for the Galatians to want to return to legalistic bondage (Galatians 3:1).

Source:

KJV Defenders Study Bible, by Dr. Henry Morris, Ph.D.
Publisher: Thomas Nelson
Language: English
DEF 10 ISBN 0-529-10444-x
DEF 10-1 ISBN 0-529-10445-8