A. Epistolary prescript (1:1)
B. Thanksgiving prayer, including summary of proof topics (1:2-10)

3:11-13 III. Partitio

4:1-5:3 IV. Probatio

A. "Concerning how it is necessary to walk" (4:1-8)
B. "Concerning brotherly love" (4:9-12)
C. "Concerning those who have fallen asleep" (4:13-5:3)
 

5:12-22 VI. Paraenesis

5:23-28 VII. Final prayers and greetings (epistolary conclusion)