I. The period of enslavement addressed, verses 1-3.
A. An illustration, verses 1-2.
B. The realm of our enslavement, verse 3.
II. The process of adoption explained, verses 4-5.
A. A special moment in time.
B. A special mission of God.
C. A special Man, the Son of God.
III. The privileges of sonship identified, verses 6-7.
A. The Spirit within you, verse 6.
B. A son forever, verse 7.